1. Can stainless steel lunch boxes be heated in the microwave oven?
It is best not to use it. Stainless steel lunch box is a sealed metal, which can only reflect microwaves, but can't penetrate and absorb them. If you put them in the microwave oven, the food inside can't be heated, and the metal box cover is too close to the metal box body, so it is easy to be ignited by microwave.
Supplement:
Stainless steel (stainless steel? Steel) is the abbreviation of stainless and acid-resistant steel, and steel or stainless steel resistant to weak corrosive media such as air, steam and water is called stainless steel; Steel that is resistant to chemical medium corrosion (such as acid, alkali and salt) is called acid-resistant steel. Their corrosion resistance is different due to their different chemical compositions. Ordinary stainless steel is generally not resistant to chemical medium corrosion, and acid-resistant steel is generally stainless.
Second, the use of precautions
1, class Ⅳ lunch boxes should not be put in the microwave oven.
Ordinary plastic lunch boxes have poor heat resistance; When cooking food with oil, the temperature may be very high and it is easy to break the glass lunch box; Aluminum pot, enamel pot, stainless steel pot and other metal lunch boxes can't be penetrated by microwaves, and the inner wall of the furnace will collide when touching the metal; The paint on the painter's lunch box may peel off and melt after heating, producing harmful substances, and the container may also crack. Eating the heated food is not good for your health. These four kinds of lunch boxes had better not be heated by microwave oven.
2, heating time should not be too long
The heating principle of microwave oven is to use the high frequency of microwave to drive the water molecules in food to move with it, and generate a lot of heat in the process to achieve the purpose of heating food. At the same time, microwave itself has sterilization function, which can increase the internal and external temperatures at the same time, and can be sterilized by heating to 70 degrees without heating for too long. We can adjust the heating time in detail according to the power of the microwave oven used. Short-time heating can not only heat and sterilize, but also maintain the flavor of food.
From the above, we can know that many tableware are not suitable for heating in the microwave oven, and only some tableware lunch boxes made of traditional ceramics or some high-temperature glass can be put in the microwave oven. In addition, it is best not to put the common stainless steel lunch boxes into the microwave oven for heating, otherwise the microwave oven may explode, and there may even be potential safety hazards, resulting in casualties and property losses. Therefore, interested friends may wish to fully understand the common precautions and operation methods.
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