A food microwave dehydrator is a device that uses microwave energy to remove moisture from food, achieving the purpose of dehydration.
When food is placed in a microwave dehydrator, the emitted microwave energy causes the water molecules inside the food to oscillate. This oscillation generates heat, which evaporates the moisture in the food. Microwaves can directly penetrate the food, heating it from the inside out, which is different from traditional dehydration methods that rely on convection or conduction heating.