Why do hard/crunchy foods soften when you leave them out and soft foods (left in the same conditions) harden?

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If I leave the bread out on the counter (no package of any kind) , it will start getting hard .If I leave out chips , they will start to soften (they lose the crunchiness) and that happens with other foods as well.Like cakes , pastries, bagels vs pretzels, and any other crunchy snack.

Wouldn’t it make sense that the same conditions would bring them to the same (or at least, similar) states?

In: Chemistry

3 Answers

Anonymous 0 Comments

It’s basically to do with moisture content. Soft fresh bread contains water, which evaporates when left out leaving the bread dry and crunchy.

Chips on the other hand are very dry, but will absorb moisture when left out, which then makes them soggy

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