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OPERAITON THEORY OF MICROWAVE OVEN
1.Microwave is a kind of high frequency electromagnetic wave, which is commonly distributed in the
nature. But the existing form of microwave is dispersed so that it cannot be collected together for heating
purpose. The key component of magnetron of microwave oven will transform the energy of electricity to
microwave and huge energy of microwave field is established under the closed cavity. So the molecule of
food is caused to vibrate at very high speed and the friction heat produced will cook the food in a fast way.
2. There is 3 properties of microwave, that is
a) Absorbability: the microwave can cause the excess vibration of molecule of various food so as to obtain
the heating purpose. But the infiltration ability is largely depend on the size, thickness and properties of the
food.
b) Penetrability: microwave can penetrate through ceramics, glass, temperature-resistant plastics. It is
required to use the containers whose material have good microwave penetrability to achieve best heating
result. See the below utensils guide.
c) Reflectivity: microwave would be reflected by the metal wall of interior cavity so as to establish an even
magnetic field, thus can prevent the overheating of partial area.
INSTALLATION OF MICROWAVE OVEN
1) To ensure sufficient ventilation, the distance from the back of microwave to the wall should be above10cm, the
side to the wall above 5cm, the top to the ceiling above 20 cm.
2) Do not place any objects on the top of microwave oven.
3) Keep the microwave oven far from the TV, Radio or antenna as picture disturbance or noise may occur.
4) Keep the plug accessible to the socket.
5)This is designed as a freestanding style and should not be placed in a cabinet.
UTENSILS GUIDELINE
It is strongly recommended to use the containers which are suitable and safe for microwave cooking.
Generally speaking, the containers which are made of heat-resistant ceramic, glass or plastic are suitable for
microwave cooking. Never use the metal containers for microwave cooking and combination cooking as
spark is likely to occur. You can take the reference of below table.
Material of
container
Microwave Grill Conv
Combi
Notes
Heat-resistant
ceramic
Yes No
No No
Never use the ceramics which are decorated with
metal rim or glazed
Heat-resistant
plastic
Yes
No
No
No
Can not be used for long time microwave cooking
Heat-resistant
glass
Yes No
No No
Grill rack
No
Yes
Yes
Yes
Plastic film
Yes
No
No
No
It should not be used when cooking meat or chops
as the over temperature may do damage to the film
FOR THE FIRST USE
As there is manufacturing residue or oil remained in the oven cavity on heating element, it usually would
smell the odor, even a slight smoke, It is normal case and would not occur after several times use, Keep the
door or window open to ensure good ventilation. So it is strongly recommended to operate as follows: set
the oven to convection or grill mode and operate dry several times, dry operation can only be conducted in
the grill or convection mode, it cannot be conducted at combination mode or microwave mode.
