Facts About Microwaves; Cooking Tips - Panasonic NNF663 Operating Instruction And Cook Book

Microwaves are electromagnetic waves of energy which occur
naturally in the atmosphere and which are similar to the type of
waves which are used to transmit radio and TV waves, long-
distance telephone calls and radar. The number of times the
microwaves oscillate per second is called frequency and is
calculated in megahertz, MHz.
Food consists of different molecules, among other things fat,
water and sugar. In most forms of food water is the largest
constituent.
Microwaves heat the food at lightning speed because it is water
that attracts the microwaves.
Your oven is equipped with the very latest microwave technology, known as the Inverter. This technology provides a better, more
uniform result than we are used to from microwave cooking.
The following tips ensure a good result and make for a better understanding of microwave cooking.
Starting Temperature
The colder the food the longer it takes to
heat up. Food from the refrigerator takes
longer to reheat than food at room
temperature.
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Facts about microwaves

The electromagnetic waves penetrate 1-5 cm into the food and
cause the food molecules to vibrate. The vibrating molecules rub
against each other 2.4 billion times a second, thereby generating
heat, just as when you rub your hands together on a cold
winter's day.
The microwaves penetrate a portion of food which is thereby
heated. If the quantity of food is doubled, the heating time
doubles accordingly. This is because the quantity of microwaves
transmitted into the microwave space must be distributed among
the quantity of food present in the oven, which is why microwave
cooking is rarely suitable for a large number of guests. However
it is extremely useful for everyday cooking in the average home.

Cooking tips

Dish size
Use a dish appropriate for the amount of
food. The larger the surface area the
quicker the food will cook.