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R-3731 English
21/07/2004
WHAT ARE MICROWAVES?
Like radio and television waves, microwaves are
electromagnetic waves.
Microwaves are produced by a magnetron inside
the microwave oven, and these vibrate the
molecules of water present in the food. The friction
this causes produces heat, which ensures that the
food is defrosted, heated, or cooked through.
The secret of the reduced cooking times is the fact
that the microwaves penetrate the food from every
direction. Energy is used to the full. In comparison,
the energy from a conventional hob passes from
the burner through the pan and so to the food. This
method wastes a great deal of energy.
GLASS AND CERAMIC GLASS
crystal), nor have a metallic overlay (e.g. gold
edge, cobalt blue finish).
CERAMICS
Generally very suitable. Ceramics must be glazed,
certain whether your utensil is suitable for the
microwave, carry out the utensil suitability test.
PORCELAIN
Very suitable. Ensure that the porcelain does not
have a gold or silver overlay and that it does not
contain any metal.
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Heat-resistant glass utensils are
very suitable. The cooking
process can be observed from all
sides. They must not, however,
contain any metal (e.g. lead
since with unglazed ceramics
moisture can get into the
ceramic. Moisture causes the
material to heat up and may
make it shatter. If you are not
WHAT ARE MICROWAVES?
THE CHARACTERISTICS OF
MICROWAVES.
Microwaves penetrate all non-metal objects made
of glass, china, earthenware, plastic, wood or
paper. This is why the microwaves never make
these materials hot. Dishes become hot only
because the food inside them is hot.
The food absorbs the microwaves and is heated.
Microwaves cannot pass through objects made of
metal and so they are deflected. For this reason
metal objects are not normally suitable for
microwave cookery. There are exceptions where
you can actually make use of the fact that the
microwaves cannot pass through metal. If you
cover food with aluminium foil at specific points
while it is defrosting or cooking, you can prevent
those parts from getting too warm, too hot, or
overcooked. Please check out the advice given in
the guide.
SUITABLE COOKWARE
PLASTIC UTENSILS
Heat resistant plastic utensils which
are suitable for use in the
microwave can be used to thaw,
heat and cook food. Follow the
manufacturers recommendations.
PLASTIC UTENSILS
Heat-resistant paper made for use in a microwave
oven is also suitable. Follow the manufacturers
recommendations.
KITCHEN PAPER
can be used to absorb any moisture which occurs
in short heating methods, e.g. of bread or products
in bread crumbs. Insert the paper between the
food and the revolving plate. The surface of the
food will stay crispy and dry. Covering greasy
food with kitchen paper will catch splashes.
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