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

  • amio
    link
    fedilink
    138 months ago

    It does. Heat conduction is faster when the temperature difference is large. Air soaks up a lot of heat, so still air is a poor heat conductor. If you’re blowing it around, you’re increasing the amount of fresh, colder air that can interact with the food.

    One spoonful and a couple of breaths is small enough stuff to have a relatively small effect and a lot of error margin, though.