Microwave Operation; How It Works; Suitable Dishware - Miele H 7640 BM Operating And Installation Instructions

How it works

The oven contains a magnetron that
converts electrical energy into
electromagnetic waves (microwaves).
These microwaves are distributed
evenly throughout the oven cavity and
are reflected off the metal walls of the
oven.
The microwaves penetrate the food
from all sides. Food consists of many
molecules. When subjected to
microwave energy, these molecules
(particularly the water molecules) start
to oscillate. This heats the food from
the outside to the inside. The more
water a food contains, the faster it is
reheated or cooked.
Advantages of the microwave oven
- Food can generally be cooked with
little or no liquid or cooking oil.
- The times for defrosting, reheating, or
cooking are shorter than with a
cooktop or oven.
- Vitamins, minerals, natural color, and
taste of the food are generally
retained.

Microwave operation

Suitable dishware

In order for microwaves to reach the
food, they must be able to penetrate the
dishware being used. Microwaves can
pass through porcelain, glass,
cardboard, and plastics, but not metal.
Therefore, do not use metal containers
or dishware that contains metal. Metal
reflects the microwaves which can
create sparks and the microwaves are
not absorbed by the metal.

Danger of injury from increased
pressure in sealed containers or
bottles
Pressure can build up during
reheating in sealed containers or
bottles, causing them to explode.
Never cook or reheat solid or liquid
food in sealed containers or bottles.
Open containers beforehand and
with baby bottles, the screw top and
teat must be removed.

Risk of fire due to using
unsuitable dishware for operating
modes which use microwave power.
Dishware which is not suitable for
use in microwave ovens can be
badly damaged and cause damage
to the appliance if used.
Only use microwave-safe dishware
for operating modes which use
microwave power.
The material and shape of dishware
used affect reheating and cooking
durations.
Heat distribution is more even in round
and oval-shaped flat containers. Food is
reheated more evenly in these
containers than in square containers.
55