this post was submitted on 27 Oct 2023
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Water without anything in it doesn't boil over
Until it suddenly does, and violently if actually superheated.
You can't superheat water in a pot on a stove. I don't think you can at all with a conventional stove.
You can do it with a conventional stove, you just need defect free pots. Also the problem is not nearly as pronounced as it is in the glass tube thingy in labs, because a pot is much wider, so there is not such a dramatic eruption.
pressure cooker with the valve soldered shut