this post was submitted on 24 Oct 2023
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No for real, most folks don't know that. It's very dangerous. Probably easier to boil in a pan on the stove.
It's not dangerous at all, superheating is rarely a thing and you can avoid it in a multitude of ways including slapping a spoon in your cup
If you're talking about the microwave somehow doing something to the water to make it irradiated or something (which I've also seen claimed): no
No I'm talking about superheating - OP is putting water in a smooth glass vessel with no points for bubbles to form. IT REALLY is worth mentioning to the casual viewer.
From the comment you're replying to:
It's not worrying at all unless youve never used a microwave for this purpose. I've microwaved a shit ton of water in those exact Pyrex measuring cups and never had an issue with superheating. Nobody in my family ever has going all the way back to the 60s.
That's called selection bias btw.
No one in my family has died in a car crash going back to their invention. Doesn't mean anything.
The variables involved in driving are not reliable. Even if you're the safest driver you can still be involved in an accident. The same cannot be said about repeatedly boiling water in the same vessel for years, like the person you are responding to. They are not lucky in the same way drivers are to avoid accidents.
No, it's called experience with the device and situation at hand
I'm not claiming superheating doesn't exist, I'm pointing out that the top level claim of "this is super dangerous" is fucking bunk
The people who've been burnt by super heated water also have experience with the device and situation at hand.
They'd not experience this situation as, like another commenter stated, even a pyrex glass has nucleation sites for boiling
If they've double-microwaved the water then they have a chance at superheating, but that is not the same situation as just microwaving water in a pyrex cup, the thing that was being called extremely dangerous
But sure, well just keep being scared of doing it at all because some people can't remember that they already heated something
Unless you mean repeatedly stopping the microwave to stir the water and starting again...
At which point I have gotta ask: why not just use a kettle?