I just put some cheese sandwiches into my microwave oven, and I can see a small layer of fluid on the surface of the cheese (trappista). What's this and why I can't see it before heating cheese up? I ...
Usually, at the end of a bag of popcorn, or when you pop your own on the stove, there is a certain number of kernels left unpopped. Why is that? Is there something that changes in the kernels that ...