this post was submitted on 09 Aug 2024
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science

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From the article:

But for the general public, the implications of the study are simpler. “A microwave is not a pure, pristine place,” Porcar says. It’s also not a pathogenic reservoir to be feared, he says. But he does recommend cleaning your kitchen microwave often — just as often as you would scrub your kitchen surfaces to eliminate potential bacteria.

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[–] [email protected] 15 points 2 months ago

Leave your microwave door open after you finish using it. This lets it dry out inside. Greatly cuts down on the funk!

[–] [email protected] 12 points 2 months ago* (last edited 2 months ago) (2 children)

How does bacteria live through being microwaved? I would think they’d boil from the inside out.

[–] [email protected] 28 points 2 months ago (2 children)

If you're reading this I am in dire straights, possibly dead. I woke up this morning to find my microwave is bursting with tardigrades. I have left it cooking nonstop for 13 consecutive days and they've only gotten more pissed off. I've welded their every possible exit from the machine shut, but I fear they are beginning to chew their way out. If you're reading this, tell the government they need to drone strike my location immediately, possibly nuke it. The world is not prepared for what is inside my microwave.

[–] [email protected] 13 points 2 months ago (1 children)

Y'all ever see that one episode of Cowboy Bebop

[–] [email protected] 3 points 2 months ago

Who knew lobster could go so wrong?

[–] [email protected] 2 points 2 months ago

Hold the nukes it's just going to piss them off

[–] [email protected] 1 points 2 months ago (1 children)

Touch the inside walls of your microwave after you heat something up. They don't get all that hot.

[–] [email protected] 9 points 2 months ago (1 children)

The walls of the microwave don’t contain water. The bacteria do. Microwave ovens work by vibrating water molecules, creating friction and heat. If bacteria are on the oven walls, they should be exploding from the microwaves.

[–] [email protected] 14 points 2 months ago* (last edited 2 months ago) (1 children)

Since the metal wall is conductive, the standing wave pattern inside a typical microwave oven has a magnitude that goes to zero at the conductor surface. The heating power also goes to zero at the wall serface. Additionally, anything in thermal contact with the metal wall will remain close to the temperature of the wall even if there is a heat flux. Bacteria may well be cooked on the carousel plate, but there will be regions within the cooking cavity where bacteria will not experience high enough temperatures for sanitization.

Check out this page and note how the heating profile is vanishingly small around the perimiter. https://www.highfrequencyelectronics.com/index.php?option=com_content&view=article&id=2153:smoothing-electric-fields-in-microwave-ovens&catid=178&Itemid=189

PS: friction is not an applicable term to describe how microwaves rotating dipoles produces heat.

[–] [email protected] 2 points 2 months ago

That's a super cool link. Thanks for sharing!

[–] [email protected] 6 points 2 months ago (2 children)

That makes sense that some degree of bacteria survives - even if its minuscule. Like how any disinfectant is only 99.9% effective

Imagine how tough the surviving organisms are to be able to survive that...

[–] [email protected] 7 points 2 months ago

Welcome to the salty microwave, how tough are you?

I’m the 0.01%

[–] [email protected] 3 points 2 months ago

Tardigrades

Tardigrades everywhere.

[–] [email protected] 5 points 2 months ago (2 children)

No the fuck it does not. I’m one of those people that actually cleans theirs. Seeing any kind of spill in the microwave, or stuff on the walls, grosses me out.

[–] [email protected] 21 points 2 months ago (2 children)

this isnt about spills. the point is that microwaves arent self-cleaning on a microbial level. even if your microwaves looks prestine, it could still house a lot of bacteria that are capable of surviving radiation.

[–] [email protected] 3 points 2 months ago (1 children)

Seems like it's pretty much like any other surface in your kitchen, it requires regular cleaning.

[–] [email protected] 2 points 2 months ago* (last edited 2 months ago)

it’s like any other surface anywhere - even if you clean it regularly it will still have bacteria on it. but the thing is most bacteria are not harmful.

[–] [email protected] 1 points 2 months ago

I don't like external bacteria that can survive radiation...

[–] [email protected] 5 points 2 months ago

... don't very few things not have their own little microbiome?

[–] [email protected] 4 points 2 months ago (1 children)

An interesting read, one of the reasons why I clean the things that I own. Microorganisms will find ways to survive and thrive on any surface. I like to first clean and then use a natural sanitizer after.

[–] [email protected] 2 points 2 months ago (1 children)

What do you use as a "natural sanitizer?"

[–] [email protected] 2 points 2 months ago (1 children)

Seventh Generation has a disinfectant based on an essential oil, thymol is the active ingredient.

[–] [email protected] 9 points 2 months ago

Just nuke some thyme, got it

[–] [email protected] 0 points 2 months ago* (last edited 2 months ago) (1 children)

Mine shouldn't since I clean that thing regularly with antibacterial cleaners. Unless it's that 0.1% of germs not annihilated by the cleaner... 🤔 Shit where's the 100% cleaner?

[–] [email protected] 6 points 2 months ago (1 children)

Don't use antibacterial cleaners for general cleaning. Especially not hand soap. All you're doing is breeding a master race of resistant bacteria in your home.

[–] [email protected] 1 points 2 months ago

Yes. Use plain non-antibacterial soap. Or bleach if you want something stronger.