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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
500•klaussilveira•8h ago•139 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
841•xnx•13h ago•503 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
54•matheusalmeida•1d ago•10 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
112•jnord•4d ago•18 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
164•dmpetrov•9h ago•76 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
166•isitcontent•8h ago•18 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
280•vecti•10h ago•127 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
60•quibono•4d ago•10 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
340•aktau•15h ago•164 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
225•eljojo•11h ago•139 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
332•ostacke•14h ago•89 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
421•todsacerdoti•16h ago•221 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
34•kmm•4d ago•2 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
11•denuoweb•1d ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
360•lstoll•14h ago•251 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
76•SerCe•4h ago•60 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
15•gmays•3h ago•2 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
59•phreda4•8h ago•9 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
9•romes•4d ago•1 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
210•i5heu•11h ago•157 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
33•gfortaine•6h ago•8 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
123•vmatsiiako•13h ago•51 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
159•limoce•3d ago•80 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
257•surprisetalk•3d ago•33 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1017•cdrnsf•18h ago•422 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
51•rescrv•16h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
93•ray__•5h ago•46 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•12 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
10•denysonique•5h ago•0 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
81•antves•1d ago•59 comments
Open in hackernews

Home washing machines fail to remove important pathogens from textiles

https://medicalxpress.com/news/2025-04-home-machines-important-pathogens-textiles.html
132•bookmtn•9mo ago

Comments

tuatoru•9mo ago
Do hospitals seriously allow people to launder their own uniforms?

That would never be allowed in the food industry.

iaaan•9mo ago
What do you mean? I've never heard of a restaurant that launders the employees' clothes for them.
tacker2000•9mo ago
I would guess that most restaurants already have a laundry service for their tablecloths, etc… which would also take on the staff clothes?

But i never worked in a restaurant, just guessing here.

ender341341•9mo ago
they probably do aprons and stuff like that but even places with uniforms it's super rare that the restaurant would handle laundering clothing.
Brian_K_White•9mo ago
restaurants have laundry service for kitchen pants, jackets, aprons, right along with all the towels, napkins, and tablecloths. They aren't the employees own clothes they got from walmart, they are provided by the laundry service like the towels.
LadyCailin•9mo ago
I have worked at sit down dining and fast food, and neither places did my laundry for me. Aprons, sure, but not the rest of the clothes. The clothes which I had to buy in the first place.
bombcar•9mo ago
Every place I've worked that had a uniform for the waitstaff and bussers had laundry service for the uniform.

Probably helped it was a hotel ...

hoten•9mo ago
Lucky! Chilis had me washing my own aprons.
forgetfreeman•9mo ago
Now I'm wondering where you live because this is definitely not a thing in the overwhelming majority of restaurants in the continental US.
Brian_K_White•9mo ago
A few different places in different cities in NY, Albany to Saratoga. Years ago though. Mostly just for the cooks not every dishwasher or waiter.
closewith•9mo ago
In most of the world, most healthcare workers launder their own scrubs and uniforms at home. I used to have a specific washing machine for it because I hated putting forgets uniforms with patient bodily fluids in my normal washing machine.

Things like scrubs exchange machines and central laundries washing staff gear is rare even in hospitals in the developed world.

nadir_ishiguro•9mo ago
I was a bit surprised by that when I first learned that from a healthcare worker, but it's true.

I think this should be taken care of by the employer.

forgetfreeman•9mo ago
So should sane work hours and good pay but here we are.
OJFord•9mo ago
If you mean from the perspective of having to do it/pay for it, you can claim I think it's £6/week for it in the UK if you don't have the option of getting it done at work (but hospitals in general do I believe).
dylan604•9mo ago
After watching The Pitt, they have a mini-plot line around the scrubs exchange machine like it's a normal thing. It was the first I had ever seen one, but I don't work in the medical industry. It felt like something used just to allow for the script to work.
lotsofpulp•9mo ago
After seeing that machine, the only way I could make sense of that machine being used is a corrupt hospital exec buying it from their cousin’s company or something.
jerlam•9mo ago
They're probably more common in large hospital systems, especially in the OR or ER departments where scrubs are more likely to get contaminated. And where lawyers are afraid of liability.
zabzonk•9mo ago
I don't know about today, but when I worked in microbiology in the 70s & 80s all our lab coats and similar clothing were washed in central facilities - in most hospitals, the central laundry was (and still is) one of the biggest facilities in the hospital.
danesparza•9mo ago
Yes, but does the central laundry wash all nurse and med tech uniforms?

I would be genuinely surprised if the answer was "yes".

I'm willing to bet they launder bed linens almost exclusively. (And perhaps the food service uniforms) :-)

zabzonk•9mo ago
As I said, I don't know what the exact situation is today, but they certainly did. Would you want us to be sitting on a bus, contaminated with pathogens?
danesparza•9mo ago
I ask because my wife was a hospital nurse for 5 years (including during the beginning and peak of Covid) at a large hospital in the US. The hospital definitely did not wash their uniforms.
PaulDavisThe1st•9mo ago
Nor firefighting PPE.
c12•9mo ago
Yes. When I started working in hospitals it wasn't the case. We had an onsite laundry facility and tailor. You would obtain your uniform from the tailors, tailor made to fit, they would also repair any damaged uniform.

You would place worn uniform in a bag labeled with your name and drop if off at the laundry to collect the next day.

Then privatisation came, first they shut down the tailors and you were expected to both purchase your uniform and pay for alterations and repairs (costs you could claim back as a tax rebate if you knew how, how not being advertised.) Then they privatised the laundry, shutting down the one on site and shifting everything to a central location, by everything I mean just the bedding, you were now expected to wash your uniform at home.

The only exception I am aware of is Surgical scrubs, those were provided in sterile wraps and were to be returned to a certain laundry bin for cleaning.

You're right about the food industry, when I worked in kitchens that days uniform was provided, freshly cleaned and returned for laundering at the end of my shift.

danesparza•9mo ago
"Allow" is a funny word.

"Require" might be more appropriate.

And I agree - the medical industry (specifically in the United States) cares more about profit than care. It's nuts.

OJFord•9mo ago
In the UK I believe you're not supposed to, other than briefly during covid, but it's (still) common.

Also though, you think people buying & wearing their own Figs scrubs would get them back if they put them in the hospital laundry service? And what about non-scrubs for that matter?

lallysingh•9mo ago
I'll wager the ones that do the poorest job in removing pathogens are also the most power and water efficient. Trade-offs matter.
userbinator•9mo ago
I'm not familiar with the machines in this article, but you can look up the specs on them and see what you find.
wnissen•9mo ago
Since less water would increase the detergent concentration, I was wondering if the opposite was the case. My family's old washer filled up the entire tub with water, so any detergent (and any pathogen, to be fair) would be quite diluted.

Short cycle length certainly makes sense to be correlated with pathogens. The lousy LG "TurboWash" only takes 28 minutes to do a full load of laundry but certainly doesn't get very much clean in that time.

I have to admit it was surprising that textiles have been identified as the source of hospital acquired infections. You'd think that even if the laundering didn't eliminate pathogens, it would greatly reduce them and make any clusters more diffuse.

fwipsy•9mo ago
As I understand, it's been identified as one possible vector, not conclusively proven to be the only (or even largest) source.
fuzzfactor•9mo ago
Remember the way VW had a digital deception built in to some of their cars that adjusted the emissions when it detected they were being monitored?

Seems like I ended up with a software-controlled washer that is not very straightforward in its behavior and it may have something to do with energy rating.

There's no setting to get a hot rinse, not even a warm rinse, as expected. All those were taken away decades ago on purely mechanical models anyway, but at least a "hot" wash is still there. A mainstream US washer uses the household hot water supply though, they do not self-heat the water. You have two separate water inlets to the machine, one for hot water, one for cold.

You put in the laundry, start a hot cycle, and the drum starts to fill by opening only the hot water supply. It keeps filling whether the top lid is open or shut but it will not start agitating unless the lid is down.

When the lid is open, you can feel how hot the water is as it pours in.

As soon as you shut the lid, the cold water opens up too at full blast even though you just wanted hot. You can hear it and feel it for a second if you open the lid, but then that cuts off the cold and all you get is hot as long as it's open.

Saves a lot of energy when things are not as hot as people think they are.

OutOfHere•9mo ago
Maybe use a long cycle for the washer.
comrade1234•9mo ago
60C held for 15+ minutes should be enough for sterilization. The research paper says they washed at 60C but that the quick cycle was especially poor at sterilization. Other than that I didn’t read the paper closer to see if it was a temperature control problem or not enough time at 60C or something else.
chewbacha•9mo ago
A hot dry cycle will also help with this through desiccation but is more damaging to clothing. Should be fine for scrubs though.
neodypsis•9mo ago
Not true. It depends on the pathogen.
jeroenhd•9mo ago
It depends on what you're trying to do. Some bacteria and viruses will survive 60 degrees. There's a reason running a very hot wash (>60C) can quickly get rid of weird smells inside of a washing machine occasionally.

Extra annoying: enabling eco mode (the one that is tested when generating the power usage stats on the sticker for these machines) on some machines will make it run "60 degree equivalent", which usually means "longer but at a lower temperature", which obviously doesn't work for sterilization at all.

Of course, this is rarely an issue for consumers who don't need to sterilize their clothes (except when a family member is sick with some specific illness maybe?). But, for hospital workers, which this paper is about, that's a different story.

blitzar•9mo ago
> means "longer but at a lower temperature", which obviously doesn't work for sterilization at all

Lower temperatures (e.g. 30-40 degrees C) may even provide a better environment for bateria and/or viruses to grow.

switch007•9mo ago
Don't get me started on eco! Now with heat pump dryers barely heating to 45c only your washing machine can do the job now. And you need a specific function to hold a higher temperature as back in the olden days.

The 90c cycle is the only one I fully trust to get proper hot but I can't wash everything at 90

trebligdivad•9mo ago
I think that they had at least one faulty machine. The 'full cycle' failed on only two machines, 'E' and 'G'; 'E' had an unusually low temperature of about 20c - so probably had a failed heater? (It was 9 years old) 'G' seems to have had the shortest hold time (about 5mins) - so again that might explain it; but why is it so short? Both E and G were Indesits; perhaps they need to build their machines to detect failures.

Still, maybe a failed machine is still a valid test - how many hospital staffs machines are unknowingly faulty?

A quick fix would be to swab staffs clean clothes every so often (or put a test patch in with their washes?) and check it.

beejiu•9mo ago
The study says none of the machines reached 60C, and 2 out of 6 only heated up for 5-13 minutes. No doubt this is so manufacturers can get the Grade A "energy rating" mandated under EU/UK regulation. (It's even worse for "Eco 60" - that only heats up to about 30C).
tehjoker•9mo ago
Hard to know what to make of this when the types of detergent are not disclosed. I recall in 2022, Oxyclean was recommended for destroying MPOX virions.
gpm•9mo ago
For what it's worth the supplemental methods file has this to say about the detergents selected

> Two commonly used UK washing detergents were selected for the assay: a non-biological liquid detergent (15-30%:Anionic surfactants; 5-15%:nonionic surfactants; <5%:phosphonate, perfume, soap, optical brighteners, methylisothiazolinone, octylisothiazolinone) and a non-biological powder detergent (5-15%: oxygen-based bleaching agents, anionic surfactants; <5%: nonionic surfactants, polycarboxylates, soap, perfume, phosphonates, optical brighteners, zeolites)

This doesn't really mean anything to me, but maybe it means something to you?

In some sense I think the real takeaway from the study is "we shouldn't be having healthcare workers wash their own patient/pathogen facing uniforms", and that takeaway seems robust against the hypothesis that only some detergents would solve the problem. As a population we can be sure that some of the healthcare workers are going to use the detergents that don't solve the problem.

tehjoker•9mo ago
The second one sounds similar to oxyclean.
twic•9mo ago
Interesting, the materials and methods says:

> Each wash cycle was performed with either biological (14g per kilogram of fabric) or non-biological detergents (20g per wash).

But your quoted passage describes two non-biological detergents. So did they use a biological detergent or not?

Anyway, the first one sounds like Persil liquid:

https://www.ocado.com/products/persil-laundry-washing-liquid...

> 15-30%: Anionic surfactants. 5-15%: Nonionic surfactants. <5%: Perfume, Phosphonates, Soap, Optical brighteners, Methylisothiazolinone, Octylisothiazolinone

And the second one sounds like Persil powder:

https://www.ocado.com/products/persil-fabric-cleaning-washin...

> 5-15%: Oxygen-based bleaching agents, Anionic surfactants. <5% Nonionic surfactants, Polycarboxylates, Soap, Perfume, Optical brighteners, Zeolites, Tetramethyl acetyloctahydronaphthelenes

Not quite the same, but similar. Both are perfectly normal brand-name household laundry detergents.

gpm•9mo ago
> But your quoted passage describes two non-biological detergents. So did they use a biological detergent or not?

It depends on what experiment in the paper you are looking at.

The supplemental section is addressing the "Laundry detergent tolerance induction assay" (a heading you can ctrl-f for) where they only used the non-biological detergent, "as biological detergent contains enzymes and other potentially disruptive components that may influence the assay".

If you go to the results section you will see results for both the biological and non-biological detergent under "Decontamination efficacy of domestic laundry machines" and so on. I didn't see anything specifying what biological detergents were used.

userbinator•9mo ago
The ones in this study are all relatively new front-loaders. I would've liked to see some much older and top-loader machines in there too, along with "traditional" TSP-based detergent.
neodypsis•9mo ago
You need to add sanitizer to the wash cycle, not just detergent.
timrichard•9mo ago
I agree… I add a capful of something like this if I think the wash needs it :

https://www.tesco.com/groceries/en-GB/products/312705939

xyzzy123•9mo ago
That's why you dry your clothes on the washing line in the sun?
nemomarx•9mo ago
Do a lot of apartments have access to a washing line? Also seems kinda slow?
xyzzy123•9mo ago
This is fair - no it won't work in every situation, just didn't see good old air and sunshine mentioned in the thread anywhere.

Surely the only scalable solution in a medical context is to get workers to change out of uniform at work and hand over to industrial laundry service, everything else relies on procedure outside the work environment which not everyone is going to do reliably and is difficult to supervise / QC.

fwipsy•9mo ago
If 90% of workers are able to effectively sterilize their uniforms, will that solve 90% of the problem? Less? More?
pama•9mo ago
Less because pathogens multiply again once they are back in the clinic.
whiterock•9mo ago
slow? much faster than hanging them up to dry inside
PaulDavisThe1st•9mo ago
Depends a lot on the climate and season.
kadoban•9mo ago
It's slower than throwing them in a standard dryer, in both clock time and human effort time.
positr0n•9mo ago
A lot of people I know would be constantly sick from allergies if they did this.
jerlam•9mo ago
My HOA has decreed that clotheslines are prohibited.

But my state has also made it illegal to prohibit the use of clotheslines, a "right to dry" law.

saagarjha•9mo ago
So, are you drying your clothes outside?
Peanuts99•9mo ago
It seems insane to me that a group of people who live near you can tell you how you dry your washing. From a UK perspective, HOA's seem mad.
freddie_mercury•9mo ago
The UK also has homeowners associations and some of them ban outdoors clothes drying.

I'm surprised you didn't know that.

gambiting•9mo ago
I live in the UK and I've never heard of that - do you have any examples? The one thing I could find is leasehold covenants prohitibing it, but that's almost always moot and ridiculously difficult to enforce.
freddie_mercury•9mo ago
https://www.edinburghnews.scotsman.com/lifestyle/homes-and-g...

Banning laundry hanging is much less common in the UK so harder to find examples. But POAs are reasonably common and enforce all kinds of things for aesthetic reasons.

potato3732842•9mo ago
HOA rules and local ordinances are written by the most petty people who have the least other stuff going on and the strongest desire to use threat of violence to control other people.

With selection bias like that it's not surprising what you get.

Der_Einzige•9mo ago
HOA's are a death cult to keep the home values of all houses within them guaranteed to go up. The sad part is that it works - HOA neighborhoods have guarantees that things which (old white people) hate, like loud parties, will not happen.

Stop buying HOA homes, and people will stop forming them. The market has spoken and a lot of Americans love them.

jerlam•9mo ago
I live in a condo and share a roof, walls, and driveways with my neighbors so an HOA or something like it is probably required. I am thankful that my HOA board is mostly hands-off, and many of the more petty rules are not enforced.

If I had to buy a standalone home, I would probably have to pay considerably more and live in a worse part of the neighborhood.

tasuki•9mo ago
> My HOA has decreed that clotheslines are prohibited.

Is there a reason for this? I'm struggling to come up with a sensible reason tbh...

patja•9mo ago
Many HOA rules are purely esthetic. Which can vary from person to person.
PebblesRox•9mo ago
"There’s status in a neatly tended space that conveys a message of respectable conformity and leisure. There’s also a strong cultural rejection of useful productive things because they’re useful and productive.

"My favorite example of this concept is the humble clothes line. Is it legal to dry your laundry in the sun where you live? In many parts of the country this is expressly forbidden by law and/or private binding agreement. This sort of activity is associated with rural peasants, impoverished slum dwellers, dirty hippies, white trash (or worse), and is at odds with the look and feel of a prosperous community. It might be a scorching day in August but everyone is compelled to operate a mechanical dryer in the house and crank up the air conditioning because anything else is shameful and verboten."

https://www.strongtowns.org/journal/2020/5/6/the-other-pitch...

gambiting•9mo ago
The thing that always surprises me about HOAs is that a country boldly calling itself "land of the free" is the one where people are willingly entering agreements telling them what they can or cannot do with their washing, how they can park their vehicle on their property, or how much and how often they can cut their own grass in their own garden. I don't see how these two are mutually compatible, I always expect a more boisterous "don't tell me what to do" attitude from Americans but it looks like a lot of them do in fact enjoy being told what to do(or they put up with it, at least).

Obviously other countries have various regulations around this stuff too, but it's just not as aggressive and not as wide spread as HOAs are in the States.

teeray•9mo ago
> is the one where people are willingly entering agreements

“Willingly” makes it sound like there’s a lot more choice in the process than there is. Many municipalities want a free lunch when it comes to approving new developments—they want all the tax revenue without any of the pesky costs of road maintenance, trash removal, drainage maintenance, etc. The solution? Approve the development with an HOA—now that’s the neighborhood’s problem (tax bills are still due in full though!). They apply this playbook over and over until the large majority of houses coming on the market are in HOAs. Buyers in these markets severely limit their choices (in an already limited market) if they eliminate HOAs from their search.

Enginerrrd•9mo ago
It's a regional thing. In my area on the West Coast, an HOA would be unthinkable.
OJFord•9mo ago
No, it's why you throw your scrubs in the hospital laundry.

Article is about healthcare workers taking their laundry home, and the resulting sustained pathogens in a medical setting.

m463•9mo ago
I like Dr Annie's laundry experiments:

https://www.dranniesexperiments.com/laundry-experiments

Ey7NFZ3P0nzAe•9mo ago
Well c difficile is an exception rather than the rule in terms of resilience
eth0up•9mo ago
First, I neither have an eidetic memory or links to the patents nor lawsuit. However....

I remember finding a lawsuit, if I remember correctly, between Samsung and a certain municipality of an unremembered state.

The patent involved a lining within surfaces of the washing and drying systems for hospitals which impart silver particles. The marketing part suggested it would spare x amount of bleach and have equal or greater efficacy.

The municipal water waste management objected based on the breakdown phase of the sewage relying on bacteria. The silver, they surmised, would obviously hinder this process and so on.

Then, as a side note, you have products from waste management called eg Sludge, which is used as fertilizer. Supposedly it is forbidden on vegetable crops, but I once interviewed a cattle rancher who said his subsidies were dependent on his acceptance and use of Sludge.

Further aside, the real problem here is the 'forever chemicals' that accompany these products. It tends to permanently compromise the land it's used on.

I remember the rancher telling me he's seen his cows chewing on condoms.

Ferret7446•9mo ago
For almost 100% of the history of washing textiles, sterilization was never even remotely a goal. In most cases, sterilization is undesirable and would likely contribute to the growing proportion of autoimmune deficiencies.

Do you also sterilize your kitchenware? Well, given the population bias of HN, probably some of you do, but the vast majority of humankind do not. If you don't sterilize things you put into your mouth, I don't see why you'd expect this for clothes.

So it is amazingly unsurprising that consumer washing machines don't sterilize clothes. Just as you need to take extra care to sterilize kitchenware when you're doing anything fermenty, hospitals shouldn't have been relying on home washing machines.

kadoban•9mo ago
Dishwashers get _quite_ hot for a long period of time, and there's relatively harsh chemicals in there too. Does anything realistically survive that anyway?
lukan•9mo ago
Some pathogens also survive hard radiation in space.

Even desinfection does not kill everything.

https://xkcd.com/1161/

Also no need to, bacteri and virus are a normal thing. The problem is, if too many of the wrong type get in your system. So reducing them in general (and also normal washing machines do that) is mostly sufficient.

(And dishwashers indeed kill microscopic life with heat and chemicals, but that is a side effect of cleaning)

sct202•9mo ago
Sometimes a red/pink film will start to grow in my dishwasher especially under the filter grate. I use a dishwasher sanitizer to kill it.
deeThrow94•9mo ago
Probably also a sign you're using too much detergent.
aaronbaugher•9mo ago
Pressure canning exists because botulism bacteria or spores can survive boiling temperatures, so you use pressure to get the food up to something like 240F for 30-120 minutes (depending on the food) to kill them. So I'd guess the answer is yes, though that doesn't account for any chemicals.
firesteelrain•9mo ago
Technically correct but I really hope people are not encountering botulism on a daily basis.
kadoban•9mo ago
Especially on clean, dry dishes (botulism is anaerobic, and needs moisture).
m3047•9mo ago
It was a few years ago, but potatoes baked in foil were the leading cause of food-borne botulism that year. I can't find a ranked list for a recent year, but it's still a recurring cause.
firesteelrain•9mo ago
really? I dont cook them that often in foil. I have never encountered it. Will keep it in mind
m3047•9mo ago
It's not the cooking, it's leaving them tightly wrapped in the foil (anaerobic) and not refrigerated; and then not reheating them hot enough to destroy the toxin. The toxin is destroyed at less than 100C, but not the bug.
firesteelrain•9mo ago
I usually wash them off, poke them, lather in butter, wrap in foil then cook on the grill. Never been sick
namibj•9mo ago
The issue seems to be with storing them after cooking and before consumption.
JumpCrisscross•9mo ago
> it is amazingly unsurprising that consumer washing machines don't sterilize clothes

The article is about “health care workers who wash their uniforms at home.”

usrnm•9mo ago
Hospitals, for the most part, are not sterile. Some parts of them are, like operating rooms, but the vast majority of the space is not and is not expected to be.
wildzzz•9mo ago
They make laundry sanitizer you can add to the fabric softener cup, it's just unscented Lysol. There's a big difference between clean, sanitized, disinfected, and sterilized. If you're working with plain soap and detergents, it's only going to come out clean. Anything beyond that requires a lot more heat and more chemicals.
bluGill•9mo ago
I sanitize my dishes by getting the things pathogens eat off. Then they sit in the cupboard overnight which is plenty of time for pathogens to die.

resteraunts that reuse dishes several times need a better plan but not my house.

firesteelrain•9mo ago
Restaurants have to run their industrial dishwashers at really high temperatures (180F), low temp (120F) w/ chemical sanitization, or the three sink setup for manual washing with chemicals and varying temps.
myself248•9mo ago
My dishwasher gets to 159°F as measured by my Thermoworks DishTemp, so yes.
TheBigSalad•9mo ago
Doesn't washing your dishes with soap and water sterilize them? Certainly stainless steel silverware, right?
quickthrowman•9mo ago
If that was the case, surgical instruments would be sterilized with soap and water instead of in an autoclave.
monster_truck•9mo ago
Almost any decent modern dishwasher sterilizes kitchenware as an option.

Likewise for washing machines. If you read the paper you will see they only tested 6 machines and chose 60C as a theshold for some reason. Every machine I've used with a sterilize function uses ~76C water.

colonial•9mo ago
> Do you also sterilize your kitchenware?

In the US, the FDA requires commercial dishwashers to hit 165F. Consumer washers usually start around ~120F (from the water heater) but even my "landlord special" cheap GE washer claims to hit 140F, which is enough to kill off 99.99% of bacteria in just a few minutes.

So, yes, more or less involuntarily - although I certainly don't mind the lack of salmonella on the forks I use to prick chicken breasts.

saagarjha•9mo ago
I thought that was the point of the dryer? The washing machine just removes dirt.
v1ne•9mo ago
Well, it's a bold hypothesis that a household washing machine should sterilise clothes. It's a machine to reduce the load of microorganisms to a manageable level and to remove dirt, fat, and odours. I don't get how the authors arrive at their hypothesis. Before washing machines, people washed clothes with their hands. Cooking them in a pot was only viable with very robust fabrics made from cotton/hemp/flax. I seriously doubt that the microbial load would have been lower before the invention of washing machines. And with older washing machines, using those nasty aggressive washing agents: Maybe, but your clothes would not last that long (there's this difference between old US-style washing machines that just stir and don't heat and EU washing machines that have a drum that turns and always heat the water).

And then, "potential pathogens" in the biofilm in the machine. Ah, well. My skin and mouth are also full of potential pathogens. I don't know what this study is trying to show. Washing machines are not sterile, I guess.

JumpCrisscross•9mo ago
> don't get how the authors arrive at their hypothesis

They didn't. The “health care workers who wash their uniforms at home" did.

avereveard•9mo ago
Why would Healthcare worker do laundry at home with potentially contaminated uniform?

Probably that is the thing to address first.

DebtDeflation•9mo ago
>your clothes would not last that long

Washing on cold or warm, gentle cycle, and then either tumble drying on low or hang drying will greatly extend the life of your clothes. Washing on hot with a more vigorous cycle and then drying on hot not only risks shrinkage in the short term but will cause your clothes to wear out and fall apart much faster.

ajuc•9mo ago
In Europe most people don't use cloth dryiers. You just hang the clothes on lines (usually on your balcony or in your bathroom if you live in a flat, or in your backyard if you live in a detached home). Clothes are dry the next day anyway, what's the rush?

I wonder if the UV from sun vs the longer time to dry results in less bacteria overall.

dreamcompiler•9mo ago
Solar UV helps a little, but UVC (180-280 nm) is necessary to thoroughly kill many bacteria and viruses (including COVID) and UVC doesn't reach the Earth because the atmosphere absorbs it.
altcognito•9mo ago
UVB kills covid, and sunlight is a pretty good disinfectant in general.

https://academic.oup.com/jid/article/222/2/214/5841129?login...

https://www.cedars-sinai.org/newsroom/study-reveals-ultravio...

I think the idea that sunlight doesn't breakdown the virus comes from people trying to "cure" cases of covid-19 with sunshine, which yeah, that's not going ot work.

dreamcompiler•9mo ago
UVB does work but it takes longer than UVC. So long that if you try to use it to disinfect skin, it's likely to give you sunburn before it kills much of the virus.

https://www.nationalacademies.org/based-on-science/covid-19-...

Contrast Far-UVC (200-235 nm), which kills the virus quickly and yet does not seem to cause skin or corneal damage, despite being more energetic than UVB.

https://en.m.wikipedia.org/wiki/Far-UVC

xattt•9mo ago
People often dry their clothes for several hours during the day to take advantage of the sun.
deeThrow94•9mo ago
Not to mention UV will break down the fabric itself.
DebtDeflation•9mo ago
This is how it was in the US too growing up in the 1970s and 1980s, everyone had a clothes line in their yard. But by the late 1980s it seemed everyone started getting clothes dryers.
ghaff•9mo ago
Clotheslines were not the norm in the 1970s US in my experience. Dryers, like dishwashers, took longer to be broadly adopted than other major appliances but they were hardly uncommon in the 1970s or even earlier.
SoftTalker•9mo ago
Depends on where you lived. In rural areas, or in older city apartments, yes perhaps. My parents house was built in a subdivision in the 1960s and had an electric clothes dryer on day one.
firesteelrain•9mo ago
My mom still hangs clothes on clothesline. I used to hate it when she would hang towels on the line because they would get hard. I also grew up wearing cloth diapers. We grew up poor.
HPsquared•9mo ago
I'd expect a longer time spent "damp" probably increases bacterial growth.
HideousKojima•9mo ago
> In Europe most people don't use cloth dryiers. You just hang the clothes on lines (usually on your balcony or in your bathroom if you live in a flat, or in your backyard if you live in a detached home). Clothes are dry the next day anyway, what's the rush?

Lived in the Czech Republic for two years and got to experience this. The result: my underwear felt like sandpaper compared to when I dried it with an actual dryer.

MisterTea•9mo ago
Yeah this is why line drying kinda sucks. Worse in the winter when you have dry skin and your stiff jeans are sanding your legs down. The solution is to tumble them in a dryer for 10 min on no heat or low to soften them up. If you dont have a dryer you can shake/tumble them by hand wrapped up in a bed sheet, laundry bag or basket. I did that a few times but it's laborious.
zippyman55•9mo ago
What is the difference between your air dried underwear and sandpaper? Sandpaper has one smooth side.
aaronbaugher•9mo ago
I use a clothesline in good weather. If it's a particularly calm day without a breeze to sort of fluff the clothes up a bit, then after they're dry, I'll toss them in the dryer on an air (non-heated) cycle for a few minutes, which takes care of it.
eptcyka•9mo ago
Wait what? Who in the EU has the time to hang clothes out? That is like a 15x time difference between a dryer and hanging clothes out on a line.
Symbiote•9mo ago
People like you and the GP, who generalize across a huge continent/trade block with a wide variety of climates, living arrangements and wealth.
eptcyka•9mo ago
People like us do what?
MisterTea•9mo ago
You plan by doing laundry ahead of time. When you have a washer and dryer you get spoiled with ~2hr wash and dry times allowing you to wash needed clothes on the day you need them. If you didn't have that luxury then you would plan ahead. I lived without a dryer for a few years and did exactly that, wash the day before and hang dry.
eptcyka•9mo ago
Sure, I still plan abead of time, but it still takes more time. I don’t dry all of my washing in the dryer, the delicates are hung. But I do have better things to do than spend hours on laundry weekly.
MisterTea•9mo ago
> But I do have better things to do than spend hours on laundry weekly.

You dont have to sit and watch the laundry dry, it does that on its own ;-) Cheekiness aside, it adds maybe 10-15 minutes for hanging up but not hours unless you have to hike to some mountain top or whatever. You still have to fold so it adds little to that when taking them down from the line.

eptcyka•9mo ago
15 minutes per wash is an hour, minute of transfering between one cylinder to the other one is 15x less. Multiply this by 4 washes, and we’ve spent an hour instead of 4 minutes.
MisterTea•9mo ago
I've learned to stop and appreciate the little mind numbing things in life: Walk to local stores, shops, markets, restaurants, Washing dishes by hand, cleaning up house routine, doing laundry. I've got patience. Lets me stop and think about stuff. Or hell, put tunes on the bluetooth speaker.

Anyway, best thing I ever had was a Mabler horizontal washer/dryer allinone unit in an old basement studio. It was small as hell and could handle everything but my winter quilt. Used cold water to condense the moisture and was closed loop. Would periodically discharge warm water into sink via long hose. I think it was designed for RVs and plugged into a 120v socket.

eptcyka•9mo ago
I would much rather spend time with my child, spouse or pet instead.
alistairSH•9mo ago
Not in the EU, but I hang dry about 1/3 of my laundry because it's stuff I don't want in the drier. Wife's bras, cycling kit, wool, dress shirts (less wrinkly when hung vs machine dried). That said, it's just the two of us, when the kid was at home, I damn near needed a commercial drier to keep up with all the stinky sports stuff and whatnot.
firesteelrain•9mo ago
I do that, just hang it inside though
ghaff•9mo ago
I do use a clothes rack inside for some things like merino wool that dry easily and are relatively delicate.
quickthrowman•9mo ago
I hang dry my shirts right inside my closet, but humidity isn’t a concern as it’s low in the winter and controlled by A/C in the summer. It takes less time to hang dry since I don’t need to put the shirts in the dryer and then take them out and hang them up.

All other clothing is washed cold and tumble dried on low, towels and bedding is washed and dried on hot.

antman•9mo ago
Its not labor time. You put them out in the afternoon they are ready the next day, most seasons. If sun can see them might be a couple of hours, hang inside out so colours don't fade. Also quicker to iron.
ajuc•9mo ago
It's something that takes 15 minutes of work once a week. The rest happens in the background without your involvement.

Negligible benefits.

And the machine takes space in small European flats.

Glawen•9mo ago
Single spotted. With kids, you're doing laundry every day.
ajuc•9mo ago
I am married. No kids tho.

But I was a kid, and we only did laundry on saturdays. What's the point of doing it daily? Do you not have 7 sets of clothes for everybody?

doubled112•9mo ago
It’s hard with little kids. Do you leave clothes covered in spills and accidents for 7 days?

Kid wets the bed? You’re washing bedding.

Drink on the couch? In go the pillows and cushion covers.

lurking_swe•9mo ago
to be fair, this occurs during a short period. an 8 year old won’t be pissing their bed every week for example, or blowing out their diaper. Dryer is a godsend during those early years though!
doubled112•9mo ago
Maybe, maybe not. You get what you get with kids.

My 7 year old just had an accident today.

I don’t really remember potty training my oldest, it just kind of happened one day. He’s never even wet the bed.

My youngest? Well, I’m confident he’ll have it figured out before high school.

balfirevic•9mo ago
> In Europe most people don't use cloth dryers

As a European, to the extent that this is true, it's only because they don't know what they're missing.

gessha•9mo ago
As a European who currently lives in the US, washes and line dries his clothes, I don’t think mainlanders are missing much. It IS convenient but I’d rather extend the clothes lifespan.
derbOac•9mo ago
I (American) kind of learned accidentally how much longer clothes last air drying, from drying work clothes and some of my child's clothes, and then expanding from there.

I kind of grew up with line drying, and then stopped, and then started again.

It is pretty remarkable how much longer clothes last with line drying. I only machine dry heavy items that take awhile to dry and/or benefit from it specifically in terms of fluffing up or wrinkling.

I'm tempted to get a heat pump dryer but I'm worried about the size of the ones that are available near me.

com2kid•9mo ago
Dryers can be set to dry on a lower temperature. Sure it takes 30 minutes longer but clothes last a lot longer. Best of both worlds IMHO.
danielbln•9mo ago
German here, happy owner of a heat punp drier. To me it's the same as a dishwasher. Something you don't think you'd need until you have it.

And once little people enter the equation, having a drier is a God's end. Modern driers are also gentler on the clothes than the hot air jets of yore.

Tagbert•9mo ago
I live in the US and during warm weather hang my laundry outside on a clothesline to dry. I live in a suburb and so have a backyard for this. Living in an apartment would make this unfeasible. The area I live in has quite a lot of cool or rainy days so that does limit it to about 1/3 of the year.
energy123•9mo ago
Hang drying increases household dust. Clothes dryers' mechanical motion is great at removing lint from clothes as an unintended consequence.
wkat4242•9mo ago
And it also makes them wonderfully soft <3 And smooth so they don't have to be ironed. I hate the power it takes but it's worth it over hang drying IMO.
HWR_14•9mo ago
> I don't know what this study is trying to show.

That hospitals should clean their employee's uniforms to prevent the spread of antibacteria resistant strains in a hospital setting, in the UK and elsewhere.

vintermann•9mo ago
I thought they did that everywhere.
poly2it•9mo ago
This is new to me. I've never heard about healthcare employees bearing this responsibility anywhere within the EU. Who does this study cater to?
akshayshah•9mo ago
In the US, it’s typical for hospitals to provide and launder scrubs used in sterile environments (especially surgical scrubs). However, scrubs are worn in many non-sterile environments too - and it’s often the employee’s responsibility to launder those scrubs. Sometimes, it’s also the employee’s responsibility to purchase non-sterile scrubs.

IMO, this isn’t as crazy as it may sound. It’s reasonable to expect healthcare workers to be professionally dressed (so no gym shorts and tee shirts). It’s also reasonable to want their clothing to be as washable as possible (no neckties, no infrequently-washed blazers or sweaters, fabrics made for harsher detergents and hotter wash water, etc.). Scrubs fit the bill and they’re an improvement over the business casual attire that preceded them.

So why not make everyone use hospital-owned, hospital-laundered scrubs? Because employees don’t like them. Hospital scrubs are usually baggy, scratchy, inconsistently sized, and just plain ugly. I’m a man, but the fit problems seemed especially bad for women. For many people, it’s not pleasant to spend every work day uncomfortable, dissatisfied with their appearance, and with their pants about to fall off.

The methods in the article aren’t super convincing, though the conclusion (wash everyone’s scrubs in a commercial facility) has some intrinsic appeal. Accelerating the rate at which hospital bacteria acquire resistance to detergents is certainly bad - it’s already quite hard to adequately clean healthcare facilities.

HWR_14•9mo ago
As the second half of my post says, healthcare workers in the UK (and elsewhere). To quote the study's second sentence: " In the UK, domestic laundering machines (DLMs) are commonly used to clean healthcare worker uniforms, raising concerns about their effectiveness in microbial decontamination and role in AMR development"
rmah•9mo ago
Hospitals in the US already use specialized washing machines that use much higher heat levels under OSHA and FDA guidelines. There are also special procedures for what gets washed with what and when.
ukuina•9mo ago
> Well, it's a bold hypothesis that a household washing machine should sterilise clothes.

That's on the manufacturers for adding "sanitize" cycles: https://cdn.avbportal.com/magento-media/GrandBlog/mhw8630hc%...

deeThrow94•9mo ago
I'm kind of ok with that functionality and advertisement. I'm more concerned with people who think that non-sterile clothing will get you sick (even though you're sitting in non-sterile clothing now).
Tijdreiziger•9mo ago
> The request could not be satisfied. The Amazon CloudFront distribution is configured to block access from your country.
ukuina•9mo ago
Try this? https://i.imgur.com/WukGwvs.jpeg
HPsquared•9mo ago
Modern clothes, washed in modern machines with modern detergent, don't seem to last long at all.

That's more a quality issue though, I think. The fabric itself seems weak.

wkat4242•9mo ago
I wear my clothes for a day and then wash them, they last about 100 washing cycles before they fray and or discolour too much. That's not bad IMO. All good quality cotton though. I only wear cotton, except underwear and socks.
Doxin•9mo ago
I have clothes that have survived decades of wear and are still structurally completely intact. Any new clothes I buy will last one season at best before the fabric just disintegrates. There's a definite change in fabric quality going on.
hoseyor•9mo ago
> there's this difference between old US-style washing machines that just stir and don't heat and EU washing machines that have a drum that turns and always heat the water

This is one reason this study seems rather dubious. In fact all the machines (they provide a table with model numbers, one of which is not correct, i.e., “00” should be “DD”) are European front loaders, but what is more concerning is that a far as I could see, there seems to be no mention of whether or how the clothes were dried.

The problem I could see with European style/model front loaders is that they usually and often proudly use little water, water which could rinse pathogens that were released from fabric by soaps, rather than allowing them to effectively reattach to fabric, but that is just my theory, yet a valid consideration altogether.

Then there is the fact that three of the washer models are masher/dryer combos, which are not only notoriously bad at both functions but their performance and designs may have an impact on results too.

Another huge hole in this research is that there is no clear mention of the brand of detergent used, only the type, biological vs non-biological (presumably only one of each). From other common testing, we very well know that different detergents perform very differently, especially across the types of stains, let alone between machines, not to mention types of machines. So we must conclude, assuming all other things being fine, this research would only even be relevant in the UK.

But then there’s also the matter of whether the detergent, the amount of detergent, and even the washing machines are representative of those used not only in the UK, but by hospital staff at all. Nothing indicates that there was some questioning, let alone observation of staff on their usage, equipment, or practices.

Frankly, this research, even if it were only relevant to the UK is still full of huge holes, even some not mentioned that I won’t bother going into detail about.

It is the kind of research that grates me because it is such sophistry, has the appearance of science and the confidence in its conclusions, but in the details it just kind of falls apart as rather purely executed, assuming the best.

I wouldn’t even be surprised if someone did some digging and found conflicts of interest, even just indirect ones that the researchers are not even aware of. Backroom research, research for the purpose of driving a commercial agenda is far more common than people think. I know this for a fact because I’ve witnessed it in person many times, from the smallest levels mostly for personal “publishing” interests, to the highest multi-billion dollar expenditures that are basically little more than very elaborate, very orchestrated, very high level get rich con jobs.

arp242•9mo ago
> it's a bold hypothesis that a household washing machine should sterilise clothes

No such hypothesis was made.

empath75•9mo ago
Others have said this more sarcastically, but the article is aimed at hospital workers who are exposed to dangerous pathogens at work on a regular basis, not the average person.
hilbert42•9mo ago
"I seriously doubt that the microbial load would have been lower before the invention of washing machines. And with older washing machines, using those nasty aggressive washing agents:…"

Nasty aggressive washing agents have a pretty devastating effect on bacteria, molds etc. especially bleaching percarbonates and such used for whiteners/stain removers. Surely then it's just a matter of increasing the amount of washing powder to achieve the desired sanitation level.

A rule I use is that if soap suds aren't still present in reasonable quantity on top of water until the end of the wash cycle then there's not enough soap powder being used.

Perhaps the trend towards minimizing the amount of cleaning agents used in washing has gone too far.

Similarly, perhaps also we've gone too far by removing phosphorus (in the form of trisodium phosphate—aka TSP, etc.) from washing powders, which has been a trend in recent years through environmental concerns. TSP, Na₃PO₄, is remarkably good at removing heavily ingrained dirt. It's also highly alkaline and hostile to living organisms.

That said, surprisingly TSP is not very toxic to humans—at least in small amounts. It's used as an acidity regulator/preservative in food, it's E339.

ghssds•9mo ago
TSP can be bought at an hardware store and then added as needed in your cloth washing machine and your dishwasher.
hilbert42•9mo ago
Yeah, I know. My hardware shop sells packs of 2kg of TSP for less than $10 and I use it for many things—cleaning paint surfaces, removing mold (small concentrations left on surfaces even prevent mold from forming), softening surfactants including washing powders, etc.

Those of us with some chemistry knowledge do such things but those people referred to in the story are unlikely to even know about TSP let alone add it or anything else to washing except perhaps fabric softener.

I found the story lacking detail so I went to the source paper† and whilst detailed in parts I also found it quite unsatisfactory. For example, during the test only 14g of 'unspecified' detergent was added. That little amount added to my wash certainly wouldn't remove dirt or oily stains let alone blood stains (which you'd expect to find on dirty medical workers clothes).

Moreover, whilst the paper mentions there are differences between liquid and powder detergents (including rhise with enzyme) little else is said about them. (Surely one should know the exact nature of one's bactericide before one commences.)

Quote extract from paper's conclusion:

"It is however difficult to determine the antimicrobial efficacy of the detergent itself from this study investigations.…"

Why? Again, you'd reckon that would be prerequisite and part of the controls (i.e.: take a fresh concentration of 14g detergent in the equivalent of a washing machine load of clean water and test it then increase the concentration in steps until 99.99% of the bugs died (that level of kill is required of an effective bactericide).

"Several studies have showed that the HAI organisms MRSA and A. baumanii and other Gram-negative bacteria can survive washes performed under 60°C without detergent…."

"without detergent" — for heaven's sake, that's hardly relevant. Who would wash clothing without detergent? None I'd suggest let alone medical workers.

When one actually reads some of these papers one can only conclude that some conclusions are questionable. Perhaps we've a case of bullshit baffling brains (here I mean those funding the research). Had I been on the funding committee I'd have not been happy with this paper.

BTW, those conducting the research are all from a school of pharmacy, you'd reckon they'd know enough chemistry and quantitative analysis to conduct a more exhaustive test.

*†https://journals.plos.org/plosone/article?id=10.1371/journal....

wkat4242•9mo ago
I always do my stuff at 90C (bedding, towels) or 60C (clothes), both should be pretty sterilised, right?

Everything I have is cotton which is very resistant to such high temps.

bgro•9mo ago
Are people perplexed by the prevalence of bacteria in residential washing machines? That’s what the smell is when clothes are left wet for too long or the door is left open, preventing drying.

Though I wonder what effect a standard load with bleach would have when used in a load or if that’s simply what the article refers to as their disinfectant test.

c12•9mo ago
I guess a lot of people don't leave the door open so the machine can dry between loads. None of my washing machines have had issue with smell but I also run a 90 degree boil wash once a month to clean things out.

It's almost as though people forget these are machines that require maintenance and cleaning.

ndr42•9mo ago
We had bad smell with just drying all reachable areas and leaving open the door, cleaning everything that is easy disassembled (tubes, water outlet area of the pump) from tine to time.

2 months ago we discovered the boil wash. With some detergent containing bleach it stopped the smell, even if we leave the machine closed during the day.

I our case it's not we have forgotten but never discovered this function.

myself248•9mo ago
My Maytag Neptune retains so much water from the previous load, that leaving it open is absolutely ineffective. It molds after 3-4 days no matter what. I can spin the drum after leaving it open for 2 weeks, and it still makes a pronounced sloshing noise, there's still a ton of water left in there.

I suspect this was meant to reduce the fill water used in the subsequent load, but that's only sensible if you're doing laundry every day or two. If you go longer between washing sessions, it's just making clothes stinky. Perhaps it's backwash from water left in the discharge hose after the pump shuts off?

So for years, I just run the first cycle empty, hot, with a bunch of bleach. It wastes more water than this stupid measure could ever possibly save, but it keeps my clothes from being stinky.

That machine was just damaged in a flood so I'm shopping for a replacement as I write this, and I cannot for the life of me find this information in any reviews. Does it drain fully? How much water is left behind?

A friend pointed out that some machines have a little pigtail hose out the back with a manual drain valve on it, presumably meant to completely empty the machine before transport. Their theory is that I could put a solenoid valve on this and install my own tiny pump to finish draining the machine after a session, possibly a peristaltic pump which wouldn't be susceptible to backflow from the lift. But again, I can't find information in the reviews about whether any given new machine I might buy, has this little drain pigtail.

cmrdporcupine•9mo ago
I too am very annoyed by the "save water" trend in appliances that then produce inferior results. Yes, I know there are parts of the world where this is a concern, but I'm in the great lakes region on a well that produces 20GPM of water and I do not have this concern. Water for me is copious and basically free and when I'm done with it it goes into my septic to reabsorb into the water table.

We switched from a front loading washer back to a top-loading one hoping we'd get results similar to the top-loading washers from our youth. But nope. Funky smells, poor distribution of detergent, clothes that don't fully clean.

User23•9mo ago
You want a Speed Queen. It’s the closest you can get to an older washer.
jihadjihad•9mo ago
> We switched from a front loading washer back to a top-loading one hoping we'd get results similar to the top-loading washers from our youth. But nope.

As sibling comment says, get yourself a Speed Queen, made with commercial parts and still washes the good old fashioned way [0].

0: https://speedqueen.com/speed-queen-difference/#classic-clean

cmrdporcupine•9mo ago
Doesn't look available in Canada, and I wouldn't buy from an American company now anyways.
sumtechguy•9mo ago
When I first switched to the front load washer I started getting a terrible smell pretty quickly.

How I got rid of it.

1) do not use liquid detergents. powder only. My working theory is the medium used to make it gooey was sticking and giving the mold a good medium to live in.

2) do not use liquid fabric softeners. see #1. I use a fabric sheet on drying.

3) clean cycle once a month

4) washer tablet in with the wash clean cycle, I alternate with bleach every other month.

5) leave the door open between washes

6) drain out the water from the 'pigtail' once every 6 months, or whatever the documentation recommends. It is not just for when you move it. It is meant for the next step.

7) clean out the lint trap. Many have this just before the drain out and before the pump. That thing can get really gunked up. especially with liquid detergents/softners. I use the same schedule as the drain out.

#1 and #2 were the main sources for me. Took about 2-3 weeks before the smell was gone.

For my samsung I would say about a 1/4 gallon is left in the hoses.

HPsquared•9mo ago
I'm lucky enough in terms of layout that I can leave the door wide open AND the detergent drawer open when it's not in use. That allows a kind of "fresh air circulation" between the drawer and the door. That ventilates the whole system. I don't get any smells. I use powder detergent, no cleaning cycles except the occasional wash at 90 Celsius. This is a UK machine though, US may be different.
mprev•9mo ago
A note on liquid versus powder detergents. In the UK, at least, my understanding is that liquid detergents do not contain bleaching agents, whereas powders do. That is, unless you buy a colour-safe powder.

If you're pouring bleach into your machine, it can erode the rubber seals. I use Dettol instead (I think it's called Lysol in the States), which seems to do the job.

sumtechguy•9mo ago
A bit of bleach once and awhile is ok. There is even a spot for it to be put in on the detergent tray. I do not use it all the time. I stick to the powder and a cup or so of bleach every now and then on a clean cycle (once or twice a year). Pretty sure it is a color safe powder I am using.
myself248•9mo ago
Oooo, #1 is fascinating. I've always used liquid and never considered this. I always run with the extra rinse enabled and no softener, so the fabrics come out clean enough that they don't smear optics. I really don't think anything's left behind, but it's an interesting theory.

7: I'm 99% sure none of my washers have ever had an integrated lint trap. I ziptie a mesh-sock trap onto the drain hose so it doesn't clog the washtub drain, and the amount of stuff it accumulates means that any machine-internal lint trap would've been clogged solid in the first few months. There's no mention of one in the manual, either.

I wonder if I didn't drain it upward into a washtub, but downward into a floor drain, if that would eliminate the water-left-in-hoses problem...

sumtechguy•9mo ago
It is not much of a 'trap' it is basically a plastic filter just before the drain out. Think it mostly is to keep big stuff out of the sump. But bits of cloth and hair can get stuck on it. You also probably do not want to totally drain it all the time. The sump as someone else pointed out needs to stay wet.

On mine it is a circular item that you can twist out. If I do it before draining water comes dumping out of that. So I drain then clean that thing. Bit of hot water and a bit of scrubbing.

SoftTalker•9mo ago
Powder detergent leaves residue also, because it doesn't ever fully dissolve.

I think washers may leave a bit of water in the "sump" so that the pump doesn't run dry. Running dry is typically not good for pumps. Shouldn't need to be a lot though.

_JamesA_•9mo ago
> 2) do not use liquid fabric softeners. see #1. I use a fabric sheet on drying.

Have you tried vinegar in the wash and wool dryer balls? I pre-wash with vinegar and add an extra rinse cycle. It's way better than fabric sheets and the balls also speed up the drying process.

sumtechguy•9mo ago
I could but my wife has an intense hatred anything with vinegar in it. It makes her gag.
_JamesA_•9mo ago
Me too. Luckily the smell doesn't persist.
kerblang•9mo ago
Vinegar is also good for dissolving lime, which builds up in the washer when you have "hard" water and will make it stink - not a mold stink, though, more some kind of bacteria that loves to live in lime. In this case it has nothing to do with residual water.

And vinegar is a pretty good cleaning agent all by itself.

dsego•9mo ago
> there's still a ton of water left in there.

Sounds like is not draining properly, is it clogged up? Should use some vinegar on an empty cycle to descale the heater and all the drain holes.

tzs•9mo ago
> I can spin the drum after leaving it open for 2 weeks, and it still makes a pronounced sloshing noise, there's still a ton of water left in there.

Is it a top loader? If so double check to make sure you are really hearing left over washing water and not balancing water.

Most top loaders have a sealed hollow ring around the drum, usually near the top but sometimes at the bottom, that is partly filled with water or a saline solution. The liquid in the ring redistributes itself around the drum during spin cycles in a way that counters an off balance load in the drum which reduces vibration and noise.

If you spin the drum by hand the balancing liquid sloshes around and it can be quite noticeable on some washers. Next time you are at an appliance dealer try spinning the drums in some of the top loaders on display. It can sound like a surprisingly large amount of water.

myself248•9mo ago
It's a front loader.
SoftTalker•9mo ago
Very few washers in the USA have a heat/boil cycle. Hot tap water is the hottest you get.

i think this is partly because in the USA, washing machines run on 120VAC. Heating the water would draw a lot of current.

fkyoureadthedoc•9mo ago
A lot now have various cycles that are hotter, but I'm not sure how hot.

My current washer (Samsung) has: deep steam, allergen, and sanitize.

stubish•9mo ago
It depends on the climate, and I think the smell you are talking about is more likely mold or mildew. In the tropics I found anything left wet for more than an hour needed to be rewashed, as it was already smelling. In colder and drier climates it is much more forgiving (but we still leave lids and doors open to allow the machine to properly dry).
jimnotgym•9mo ago
Dna of a bacteria being in your machine surely doesn't mean there are live bacteria in the machine
bob1029•9mo ago
Drying is far more destructive to pathogens. The "sanitize" option is on the dryer, not the washer.

On my dryer, it says "sanitize with regular fabric selected (and manual time set to maximum)".

PicassoCTs•9mo ago
? You dont cook the cloths in a auto-clave- you just move it in warm water with soap- and the soap dissolves the fatty hull of the pathogens. Of course you can still detect them- the dna is still there floating around.
MarkMarine•9mo ago
With the prevalence of vanity scrubs from figs now I doubt most nurses and doctors I’ve seen recently are throwing their fancy scrubs into the communal wash.
tiahura•9mo ago
What if you use that Lysol laundry disinfectant?
osigurdson•9mo ago
It's little suspicious that the paper was written by George Jefferson.
endoblast•9mo ago
Would adding Oxi Clean or somesuch powder to the wash help to sterilize clothing?
Cthulhu_•9mo ago
Headline caveat: specifically for medical staff. I didn't realize they have to wash their own work clothes, I always assumed that was done by a professional company using high temperatures and specialized products, if it was even washed to begin with instead of incinerated. The more you know.
piombisallow•9mo ago
This is why I hate seeing all the medical people in their scrubs in the supermarket and coffeeshops around campus.
knowitnone•9mo ago
wait. nobody ever claimed washing machines killed bacterium. When I have a biohazard, I certainly don't throw it into a washing machine and certainly not with other clothing.
tim333•9mo ago
I read another article testing this. The conclusion was similar in that all programs failed to get rid of all pathogens but all you had to do to achieve that was to put some bleach in the wash.
hnick•9mo ago
From a skim it looks like the highest setting tested was 60°C which can kill, but wouldn't be considered sufficient in all cases for food safety for example.

My own washing machine is nothing special (front-loader Euromaid, whatever was cheap ~10 years ago) and you can manually bump to temperature up to 70/80/90°C for a cycle (which adds some time). I haven't measured it though to see how accurate it is and I'd imagine 90°C at least isn't great for those rubbery painted patterns or general clothing integrity either.

I started using the higher temperatures occasionally since I have some old t-shirts, but I always have to stop wearing them since the underarms develop a crust - I guess it's some kind of bio-reaction between me, my bacteria ride hitchers, and deodorant. Higher temps do seem to delay this build-up (which seems impossible to clean off), but does seem to reduce the life expectancy of the clothing. When I see people (mostly women) still wearing shirts they got in high school, it makes me a little envious. Mine got that issue in < 5 years before changing the wash temps :(