Miele M 636 EG User Manual download pdf (Page 11)

How does the microwave oven function?

In the microwave oven, food is cooked,

reheated or defrosted more quickly

than by any other method.

How does the microwave oven func-

tion?

In a microwave oven there is a high-fre-

quency tube called a magnetron

b.

This converts electrical energy into

microwaves. These microwaves are dis-

tributed evenly throughout the oven in-

terior by a metal fan blade known as a

stirrer

c -, rebounding off the metal

sides of the oven interior and thereby

reaching the food from all sides. Micro-

wave distribution is improved by engag-

ing the turntable.

In order for microwaves to reach the

food, they must be able to penetrate

the cooking utensil being used. Micro-

waves can penetrate porcelain, glass,

cardboard and plastics but not metal.

Do not, therefore, use utensils made of

metal, or which contain metal, for

example in the form of gold or silver

trim. The metal reflects the microwaves

and this could lead to the creation of

sparks. The microwaves cannot be ab-

sorbed.

Microwaves pass through a suitable

container and find their way directly

into the foodstuff. All foodstuffs contain

moisture molecules which, when sub-

jected to microwave energy, start to os-

cillate 2.5 thousand million times a sec-

ond. The friction caused by this

vibration creates heat, which first starts

developing around the outside of the

foodstuff and then slowly penetrates to-

wards 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 with-

out adding much liquid or cooking

oil.

– cooking, re-heating and defrosting in

a microwave oven is quicker than

using conventional methods.

– nutrients, such as vitamins and mine-

rals, are retained.

– colour, texture and taste of food are

not impaired.

How does the microwave oven function?

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