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Serious Eats

Does Cold Water Boil Faster Than Hot?

Posted by Adam Kuban, March 18, 2008

Of course not! But "under the right circumstances," hot water can freeze faster than cold. "Part of the reason appears to be that hotter water loses mass to evaporation, and because it has less mass, less energy is needed to freeze it." And that is what's known as the Mpemba Effect.

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