The crossword solutions for the term 'Bad Stuff to Microwave' are METAL and EVIL. METAL is a common material found in many household items, such as cutlery, cookware, and utensils. It is not recommended to put METAL in a microwave as it can cause sparks and potentially start a fire. EVIL is an abstract concept that is often used to describe something that is morally wrong or harmful. It is important to remember that microwaving certain items can be dangerous and should be avoided.