No Stupid Questions

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Don't be embarrassed of your curiosity; everyone has questions that they may feel uncomfortable asking certain people, so this place gives you a nice area not to be judged about asking it. Everyone here is willing to help.

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Does blowing on our hot food before we put it into our mouths actually make a difference to how hot it is? (feddit.uk)

submitted 7 months ago by [email protected] to c/[email protected]

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I'm thinking that no, it doesn't. Which begs the question of why we do it? Is it a psychological thing?

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[–] [email protected] 41 points 7 months ago (1 children)

Yes, it does. By blowing over it, you evaporate some of its water, which cools it down. See also https://en.wikipedia.org/wiki/Enthalpy_of_vaporization

[–] [email protected] 6 points 7 months ago (1 children)

Thank you.

I think I saw a show 20 or so years ago that tried to debunk this and obviously either they messed up, or I wasn't paying attention.

(The show was called Brainiac).