Conventional Microwave

A microwave oven, or microwave, is a kitchen appliance that can come in many different sizes and styles employing microwave radiation primarily to cook or heat food. This is accomplished by using microwaves, almost always emitted from a magnetron, to excite water (primarily) and other polarized molecules within the food to be heated. This excitation is fairly uniform, leading to food being heated everywhere all at once (except in thick objects), a feature not seen in any other heating technique.

Although microwave radiation in and of itself can be dangerous, when used properly these devices heat food quickly, efficiently, and safely.