How Your Microwave OvenWorks

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.

Microwaves are like TV waves or light-waves. You can’t see them but you can see what they do.

Mod

netron

A mangnetron in the microwave oven produces

 

 

microwaves. The microwave move into the oven

 

 

where they are scattered or stirred by a mode

 

 

mixer (like a fan). Microwaves bounce off metal

 

 

oven walls and are absorbed by food.

Oven cavity

Microwaves pass through glass, paper and most plastics without heating them so food absorbs the energy. Microwaves bounce off metal pans so food does not absorb the energy.

Microwaves may not reach the center of a 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.

The microwaves disturb water molecules in the food. As the molecules bounce around bumping into each other, heat is made, like rubbing your hands together. This is the heat that does the cooking.

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Whirlpool MS1451XWI, MS1650XW manual How Your Microwave OvenWorks, Where they are scattered or stirred by a mode