Bread contains moisture and dries out as it ages, while crackers are dry and absorb moisture.
Both will even out to the atmospheric humidity level of the room they are in.
because it's structure gets harder and harder as the molecules inside of it start to harden or adapt to its environment
Bread, if left out for too long, will become stale. This happens for 2 reasons. One, if the bread was hot, it would be softer. As it cools, the crust will harden. Otherwise, air causes the soft-ness of the bread to deplete. The air can dry out the bread, cool it off, harden the crust, take the moisture out, and possibly cause it to grow mold (if you leave it for TOO long). Some cookies / crackers will do the same. Others will become mushy. This happens as the bonds within the cookie / cracker that made it crunchy or firm begin to loosen. As moisture seeps into a cookie / cracker, that bond will also weaken and it will become softer with time.
i think stale bread is not necessary but fresh bread
One can throw stale bread out in the garbage.
slice, hunk, loaf, toast (if cooked)slices
mold bread has green fungus growing out of it. stale means old but stiff and hard...i think
The bread tasted stale after sitting out for a few days.
Nothing. Stale bread is perfectly safe to eat because it is simply not as moist as fresh bread.
To refresh bread that had gone stale.
If it is stale then yes.
Yes
You can, but it will cause the bread to dry out and go stale.