24
24
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
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and from manmade sources. Manmade
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telecommunication links and mobile
phones.
How Microwaves Cook Food
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converted into microwaves by the
magnetron
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refer to page 38.
Microwave
stirrer
Waveguide
Stirrer
motor
Magnetron
Oven cavityBase of the oven
Transmission
Then they pass through the cooking
containers to be absorbed by the water
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water to a more or lesser extent.
Important Notes
The dish used to cook or
reheat the food will get warm
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conducts from the food. Even in
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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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The microwaves bounce off the metal
walls and the metal door screen.