TO AVOID EXPLOSION AND SUDDEN BOILIING
WARNING
When heating liquids, e.g. soups, sauces and beverages in your microwave oven, overheating the liquid beyond boiling point can occur without evidence of bubbling: This could result in a sudden boil over of the not liquid. To prevent this possibility the following steps should be taken:
a. Avoid using straight sided containers with narrow necks. b. Do not overheat.
c. Stir the liquid before placing the container in the oven and again halfway through the heating time.
d. After heating, allow to stand in the oven for a short time, stir or shake them again carefully and check the temperature of them before consumption to avoid burns (especially, contents of feeding bottles and baby food jars).
1.Eggs
Never cook eggs in their shells. Steam will build up inside the shell during cooking and the egg will explode.
If you want to cook or reheat eggs which have not been broken up by scrambling or mixing, you must always pierce the yolks or these will also explode. You should slice shelled hard boiled eggs before you reheat them in your microwave oven.
2.Piercing
Always pierce food which has a skin or membrane, for example, potatoes, tomatoes, apples, sausages etc. If you don't pierce them, steam will build up inside and they may explode.
3.Lids
Always remove the lids of jars and containers and take away food containers, before you cook using your microwave oven. If you don't, then steam and pressure might build up inside and cause an explosion even after the microwave cooking has stopped.
WHICH UTENSIL CAN BE USED IN THE OVEN?
Before use, the user should check that utensils are suitable for use in microwave ovens.
| Grill & | Microwave | Combined |
Material | Convection | ||
| cooking | cooking | cooking |
|
|
| |
Glass (general) | No | Yes (1) | No |
Glass (heat resistant) | Yes | Yes | Yes |
|
|
| |
ceramic (heat resistant) | Yes | Yes (1) | Yes (1) |
Earthenware | Yes | Yes | Yes |
China (heat resistant) | Yes | Yes | Yes |
Plastic (general) | No | Yes (2) | No |
Plastic (heat resistant) | Yes (2) | Yes (2) | Yes (2) |
Aluminium foil containers |
|
|
|
/aluminium foil | Yes | Yes (3) | Yes |
Metal baking tins | Yes (4) | No | Yes (4) |
Metal (pots.pans, etc) | Yes | No | No |
Paper | No | Yes | No |
|
|
|
|
1.Without metal parts or metal trims.
2.Some plastics are
3.It is possible to use aluminium foil to shield deliate areas of food (this prevents
4.Metal tins can be used in the combination methods, however if these are very deep, they will greatly reduce the efficiency, as metal shields the microwave energy from the food.
Microwave function only
Utensils and cooking containers used in a microwave oven should be of a material that does not act as a barrier to microwave energy. Generally this means that you should cook in either (paper), plastic, glass or ceramic. Metal pans reflect microwave energy and inhibit cooking, and should not be used. In addition to material, the shape of the container should also be considered. Round oval shapes give the most even cooking. Square or rectangular containers may
Utensils made of china and ceramic excellent to use in your microwave oven. Most types of glass are also very good. Lead crystal glass can crack and should therefore, not be used. Plastics and paper can also be used, provided they can withstand the temperature of the heated food. For cooking only use plastics, which will withstand a temperature of over 120˚C, e.g. polypropene and polyamide. Some plastic materials, e.g. melamine, will be heated by the microwave, and be damaged. To find out if a certain container is suitable, the following simple test can be made:
Place the empty container and a glass of water inside the microwave oven. The water is needed because the oven must not be operated empty or with empty containers only. Let the oven work on full power for one minute. A suitable container will only be lukewarm.
Metal containers, e.g. saucepans or frying pans should not be used in microwave ovens. Nor should plates or vessels with decorations be used since metal e.g. gold, might be part of the decoration and such decorations will be damaged. Small pieces of aluminiuum foil can be
used, but only to shield the areas that would
Caution:
•There are a number of accessories available on the market. Before you buy, make sure they are suitable for microwave use.
•When you put food in the microwave oven, make sure that food, food supports or covering do not come in direct contact with any of the internal walls or the ceiling of the cavity since discolouration may take place.
4
