Isn’t the Radiation Harmful?
Microwaves are a type of radiation–this sounds dangerous, but radiation as a term encompasses a lot of other forms of energy we consider perfectly safe, like the colors we see in rainbows.
In fact, the only dangerous sorts of radiation are called ionizing radiation. Ionizing radiation, like the sort found in nuclear fallout, can cause cellular damage. Non-ionizing, like microwaves, just can’t cause that sort of problem.