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 Principles
of Microwave Oven |
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Microwaves are a form of
energy similar to radio and television waves and ordinary
sunlight. Ordinarily, microwaves spread outwards as they
travel through the atmosphere and disappear without effect.
Microwave ovens, however, have a magnetron, which is designed
to make use of the energy in microwaves.
Electricity, supplied to the magnetron tube, is used to
create microwave energy. These microwaves enter the cooking
area through openings inside the oven. A turntable or
tray is located at the bottom of the oven.
Microwaves cannot pass through metal walls of the oven,
but they can penetrate such materials as glass, porcelain,
and paper, the materials out of which microwave-safe cooking
dishes are constructed. Microwaves do not heat the cook-ware,
though cooking vessels will eventually get hot from the
heat generated by the food.
A very safe appliance. Your microwave oven is one
of the safest of all home appliances. When the door is
opened, the oven automatically stops producing microwaves.
Microwave energy is converted completely to heat when
it enters food, leaving no residual energy to harm you
when you cook your food.
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