What are microwaves?
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.
The characteristics of microwaves.
Microwaves penetrate all
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 ovenware
Glass and ceramic glass
Ceramics
Generally very suitable. Ceramics must be glazed, 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 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.
Plastic & paper 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.
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.
Microwave cling film
This, or
Roasting bags
Can be used in a microwave oven. Metal clips are not suitable for fastening them since the roasting bag foil might melt. Fasten the roasting bag with string and pierce it several times with a fork. Non
Browning dish
A special microwave dish made from ceramic glass with a metal alloy base, which allows food to be browned. When using the browning dish a suitable insulator, e.g. a porcelain plate, must be placed between the turntable and the browning dish. Be careful to adhere exactly to the
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