Whirlpool RM280PXB User Manual download pdf (Page 35)

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.

Microwaves are like TV waves or light

waves. You cannot see them, but you can

see what they do.

A magnetron in the microwave oven pro-

duces microwaves. The microwaves move

into the oven where they contact food as it

turns on the glass turntable.

The glass turntable of your microwave oven

lets microwaves pass through. Then they

bounce off a metal floor, back through the

glass turntable, and are absorbed by the

food.

Microwaves pass through most glass, paper

and 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 spreads to the center from

the outer, cooked areas just as in regular

oven cooking. This is one of the reasons for

letting some foods (for example, roasts or

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.

Metal floor -

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