How the Microwave Oven Works
Microwaves are a form of energy similar to radio and television waves and
ordinary daylight. Normally, 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 created
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 cookware, 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 “left over” energy to harm you when
you eat your food.
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