How The Microwave Oven Works; Why Does The Food Heat Up - Candy MIC 202 MX Mode D'emploi

How the microwave oven works

In the microwave oven there is a high voltage
valve called "Magnetron" that converts electric
energy to microwave
electromagnetic waves are conducted to the
inside of the oven cavity by means of wave-guide
and spread by a mode stirrer or by a turntable.
Inside the oven the microwaves spread out in all
directions and are reflected by the metallic walls,
penetrating the food evenly.

Why does the food heat up?

Most food contains water, whose molecules
vibrate with microwaves.
The friction between the molecules generates
heat, which causes a temperature rise in the
food, defrosting it, cooking it or keeping it warm.
As the heat is formed inside the food:
- It may be cooked with little or no liquid or fat;
- Defrosting,
heating
microwave oven is quicker than in a
conventional oven;
- Vitamins, minerals and nutritive substances
are preserved;
- There is no change in the natural food colour
and aroma.
energy. These
or cooking in the
The microwaves travel through porcelain, glass,
cardboard or plastic but not through metal.
Therefore, recipients made of or containing metal
should not be used in the microwave oven.
The microwaves are reflected by the metal
They travel through glass, porcelain...
They are absorbed by the food.
5