The Mechanism Microwaves Heat Food

Do you know why microwaves heat food?

Microwaves use electromagnetic waves to create frictional heat to warm food. Frictional heat is the type of heat that is produced when you rub your palms together and create warmth.

In the case of microwave ovens, frictional heat is produced with a type of radio wave called microwaves. Apparently the word “microwave” comes from this.

Water is composed of tons of H20 molecules, and the way they heat food is that the water molecules in the food are “rubbed” by the “hands” of microwaves. A microwave vibrates 2.45 billion times per second, so this is the times in number that the water molecules are rubbed.

Since this is the way a microwave oven works, you cannot heat a substance that does not contain water with microwave ovens. Therefore, if you put a plate or cup without food in the microwave oven and try to heat it up, it will not get heated.

Lina  Writer/Translator
Having wide knowledge in the field of science and history, writing articles about interesting topics for all age readers. B.A from Waseda University, based in Tokyo.

Copied title and URL