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Microwave
In a microwave oven there is a high-
frequency tube called a magnetron.
This converts electrical energy into
microwaves. These microwaves are
distributed evenly throughout the oven
interior and rebound off 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 (see
"Suitable containers for microwave
ovens"). Microwaves pass through a
suitable container and find their way
directly into the food.
All food contains moisture molecules
which when subjected to microwave
energy start to oscillate vigorously. The
friction caused by this vibration creates
heat which first starts developing
around the outside of the food and then
slowly penetrates towards the centre.
The moisture, fat and sugar content of
food will affect the speed at which it is
cooked.
As heat is produced directly in the
food,
– food can generally be cooked
without adding much liquid or
cooking oil.
– cooking, reheating and defrosting is
much quicker than when using a
function which does not use
microwave energy.
– nutrients, such as vitamins and
minerals, are generally retained.
– the colour, texture and taste of food
are not impaired.
Power level
The following power levels can be
selected:
80 W, 150 W, 300 W, 450 W, 600 W,
850 W, 1000 W
Microwaves stop being produced as
soon as the cooking process is
interrupted or the appliance door is
opened.
Functions
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