Is food put in the Microwave oven radioactive and is it safe?

Microwaves aren’t radiation, they’re radio waves, so microwaved foods never become radioactive in the first place.

The way microwaves work is that they have a strong effect on water, twisting its molecules back and forth rapidly. As the water molecules rub back and forth against other molecules, they heat up from the friction.

Luckily nearly all foods have at least a little moisture in them, otherwise they wouldn’t heat up. Even bread has a little water in it, so do cookies and pastry.

is food put in the microwave oven radioactive and is it safe
About Karen Hill

Karen Hill is a freelance writer, editor, and columnist for Born in New York, she loves interesting random facts from all over the world.