Originally Posted by jeank

you also have to be careful of spilled food on them. the food from a prior use can easily catch fire. That is why I don't make them I will not set up someone else's home, possibly children, for a disaster.

If you have put soup in them, the soup has fat content. that may not be noticeable when the next person goes to use it.

you could use them to carry the bowl when it comes out of the microwave.