How your microwave oven works
Microwave ovens are safe. Microwave energy is not hot. It causes food to make its own heat, and it’s this heat that cooks the food
Mode Mixer | Magnetron | Ceramic Bottom |
Microwaves are like TV waves or light waves. You can’t see them, but you can see what
they do.
Microwaves pass through glass, paper and most plastics with- out heating them so food absorbs the energy. Microwaves bounce off metal
pans so food does not absorb the energy.
Oven Cavity
A magnetron in the microwave oven pro- duces microwaves.
The microwaves move into the oven where they are scat- tered or stirred by a mode mixer (like a fan]. Microwaves bounce off metal oven walls and are absorbed by food.
Microwaves may not reachthecenterofa roast. The heat around the outside is what cooks the roast all the way through. This is one of the reasons for letting some foods (roasts, baked potatoes] stand for a while after cooking, or for stirring some foods during the cooking time.
Metal Floor
The ceramic bottom of your microwave oven lets microwaves through. Then they bounce off a metal floor, back through the ceramic bottom and are absorbed by the food.
The microwaves dis- turb water molecules in the food. As the mole- cules bounce around bumping into each other, heat is made, like rubbing your hands to- gether This is the heat that does the cooking.
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