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Microwaving Principles
Microwave energy has been used in
this country to cook and reheat food
since early experiments with radar in
World War II.
Microwaves are present in the
and from manmade sources. Manmade
telecommunication links and mobile
phones.
How Microwaves Cook Food
Base of the oven
Magnetron
converted into microwaves by the
magnetron
refer to page 38.
24
Oven cavity
Microwave
stirrer
Waveguide
Stirrer
motor
24
The microwaves bounce off the metal
walls and the metal door screen.
Transmission
Then they pass through the cooking
containers to be absorbed by the water
water to a more or lesser extent.
Important Notes
The dish used to cook or
reheat the food will get warm
conducts from the food. Even in
required!
Microwaves can not pass
through metal and therefore
metal cooking utensils can
never be used in a microwave,
for cooking on microwave
only.
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