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Henan microwave equipment network: microwave oven is one of the common microwave equipment. With the development of the times, this thing slowly entered people's daily life. Microwave ovens are very convenient for heating things, and the speed is also very fast. People slowly have doubts about high technology. Microwave is an electromagnetic wave. The word "radiation" is heated up in the era of mobile phones. People know the danger of radiation, and then think of the microwave. For food heating radiation, and then eating radiation food, is it cancer? So today we will analyze the use of microwave equipment to heat the food in the end.
First of all, what is the principle of microwave heating food?
Why is it fever? From a physics point of view, heat is caused by friction in molecular motion, which is invisible to the human eye. Usually we cook, heating the pan to produce heat transfer to heat the food. So how does a domestic microwave oven heat food?
Chemically, water is called a polar molecule because it consists of one oxygen atom and two hydrogen atoms. The oxygen atoms are very attractive to electrons, so the electrons in the water molecules are concentrated at the end of the oxygen atom. The corresponding hydrogen atom is less. On the whole, the water molecule has one with positive electricity and the other with negative electricity. When the water is in the electric field, the positive side will turn to the negative pole of the electric field, while the negative side will turn to the positive pole of the electric field - the so-called "heterosexual attraction, homosexual repelling".
The tray of the microwave oven rotates, and electromagnetic waves act on the food to form a rotating electric field. In the electric field, the electromagnetic wave is about 2 billion laps per second, so that the water molecules continue to rotate at such a speed. The friction between the molecules and the molecules is constantly generated, and the temperature is continuously increased. The boiling point of the water is 100 ° C. When it reaches 100 ° C, the water molecules are evaporated and the same food is heated. The loss of water in the food, microwave heating did not take away the nutrients in the food.
Second, does microwave heating food cause cancer?
Microwave is a type of radiation. Does it cause carcinogens when irradiated with food? Microwaves are not the same as X-rays. Microwave radiation only transmits energy, and X-rays are much higher than microwaves. Similarly, radium and uranium It is radioactive, so radioactive isotopes emit particles during the decay process, so they can cause cancer in the organism.
Therefore, microwaves do not have carcinogenic functions, and they do not cause carcinogens to food. Even it helps to avoid the production of carcinogens. For fish, meat and other foods, traditional heating, especially barbecue and other methods, tend to cause the meat to zoom, resulting in some carcinogens. A scientific review published in 2004 introduced the carcinogen production and carcinogenicity. Finally, it was pointed out that heating in a microwave oven can effectively reduce the production of such carcinogens.
Then why would anyone say that microwaves are harmful and microwave ovens are not safe?
There was an accident in the process of using the microwave oven, but the cause was improper use. Here are two examples to illustrate:
1. Egg explosion. Microwave ovens can't heat eggs, which is probably a common sense. The reason for the explosion of eggs is somewhat similar to the "bumping" of water. The inside of the egg is overheated, the pressure is very high, and it is disturbed by the outside world, and the pressure is released, so the egg is violent. If the explosion occurs when the egg enters the mouth, it is probably equivalent to setting off firecrackers in the mouth.
2, the temperature is too high - the water will flow when the traditional boiling water, the boiling point will be "open". The microwave heating water does not flow, but the temperature rises, and it is possible to exceed the boiling point and still "not open". But the water temperature at this time is already very high, and as long as there is a little disturbance, it will violently boil. If this disturbance is generated when you go to get water, it will be burnt more than boiling water. The cleaner the container, the cleaner the water, the more likely it is to have such an accident. Therefore, in order to be safe, it is best not to "test the law" to experience the "overheating" of hot water. Other liquids, such as milk, soup, etc., because other ingredients do not easily overheat, but it is easy to "bump" and rush out of the container for a long time. It is not impossible to use a microwave to heat these things, but to calculate the heating time.
Finally, it is not correct to say that microwave energy causes carcinogens, microwave equipment causes loss of food nutrition, and microwave equipment is not safe to use. As long as the microwave equipment is used correctly, it can make a great contribution to human beings in life and industry.
Henan Boda has been researching in the microwave field all the year round. The microwave fruit slice sterilization and drying equipment developed can effectively dry and sterilize banana chips and apple slices. The red jujube drying equipment can effectively dry jujubes for convenient storage. There are vegetable dehydration equipment and so on, which have made tremendous contributions to the human food field.
China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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