eli5: Why does cooking/warming up food make sound?
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Most of the sound is the sound of water escaping from the food – we can heat up fats and oils to very high temperatures before they start to smoke, but water will turn to steam at 100C/212F; it can’t get any hotter without vaporizing. So when water in the food hits the oil in a pan (which can be 300-400 degrees), it instantly reacts and turns into steam – this interaction gives us the sizzling sound that makes us all feel hungry.
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