Microwave power
61
How it works
The Speed Oven contains a high-
frequency tube called a magnetron. It
converts electrical energy into
microwaves. The microwaves are then
distributed evenly throughout the metal
sides of the oven interior to reach the
food from all sides.
In order for microwaves to reach the
food, they must be able to penetrate the
cooking container being used.
Microwaves can pass through
porcelain, glass, cardboard, and
plastics, but not metal. Therefore, do
not use containers that are made of
metal or contain metal (in the form of
gold or silver trim, for example). The
metal reflects microwaves and this
could cause sparking. The microwaves
cannot be absorbed.
The microwaves will pass through any
suitable cookware and find their way
directly into the food. All food contains
moisture molecules which, when
subjected to microwave energy, begin
to oscillate at a rate of 2.5 billion times
per second. The friction caused by
these vibrations creates heat, which
first starts developing around the
outside of the food and then slowly
penetrates it toward the center. The
more water a food contains, the faster it
is reheated or cooked. The heat is
produced directly in the food.
Advantages
– Food can generally be cooked in a
microwave with little or no liquid or
oil.
– Defrosting, heating, and cooking is
faster than when using a
conventional cooktop or oven.
– Nutrients, such as vitamins and
minerals, are generally retained.
– The natural color, texture, and taste
of food are not impaired.
Microwaves stop being produced as
soon as the cooking process is
interrupted or the appliance door is
opened. When the appliance is in
operation, the closed, sealed door
prevents microwaves escaping from
the appliance.
Microwave power levels
Microwave power levels 1 to 7 can be
selected.
Summary of Contents for HR 1954-2
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