Microwaves are loved for their ability to heat almost any kind of food in minutes. They can be used to boil hot water for tea or coffee, melt cheese, pop popcorn, steam vegetables, reheat spaghetti and heat almost any other type of food. They're so versatile, chances are you use one several times a day.
Microwave ovens use microwaves to heat food. Microwaves are radio waves sent at a 2.4 gigahertz frequency. When these microwaves are sent through food, the water, fat and other ingredients in the food absorb the energy and convert it into heat.
Unlike a conventional oven, a microwave oven doesn't get hot inside while cooking food. This also prevents it from browning foods. Cookware used to heat food must be microwave safe, and not metal, which can cause a fire in a microwave.Microwaves come in a variety of sizes: