The coating of non-stick pan is mainly PTFE, which is a kind of anti-stick coating and cannot contact acidic food. There is a certain limit to the temperature, which cannot exceed 250 degrees. Although the daily cooking temperature will not exceed 180 degrees, there is no need to worry about the decomposition of the coating and the release of harmful substances. However, if you cook with a shovel, it is easy to destroy the coating of the non-stick pan and let the toxic coating mix into the dish, which is harmful to your health.
"Teflon" is also widely used in clothing, home, medical care and some aerospace products. But at present, its harm to human body is mainly decomposition and melting at high temperature. In other cases, the temperature will basically not exceed the limit of 260 degrees, so don't worry.
2065438+071October 27 17 The list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization has been preliminarily sorted out for reference, and PTFE is in the list of three types of carcinogens.
Extended data
PTFE has a congenital defect, that is, the bonding strength is not high, the non-stick pan is not completely covered with PTFE coating, and some metal surfaces are always exposed. Acidic substances are easy to corrode the metal body, and once the body is corroded, it will expand, thus expanding the coating and causing the coating to fall off in a large area.
The standard requires that the average thickness of frying pan and frying pan is greater than or equal to 25 microns; The average thickness of the boiling pot and the milk pot is greater than or equal to 20 microns. This is an important index of non-stick pan, which will affect the service life and performance of non-stick pan. In addition, the surface of the non-stick pan needs to be cleaned by sandblasting before painting to increase the roughness of the surface and increase the adhesion, thus increasing the adhesion fastness and scratch resistance.
Non-stickiness is an important index of non-stick pan, which is related to the performance of coating itself and the curing quality of coating. According to the standard, gently wipe the surface of the non-stick coating with a soft cloth stained with vegetable oil, clean it with warm water and detergent, and then clean it with clear water. After drying, the test of frying eggs was carried out to determine the advantages and disadvantages of non-stick pan.
People's Network-Beware of the "hygienic dead corner" that endangers health in the kitchen.
Baidu encyclopedia-nonstick pot
People's Network-Expert: Can the temperature of non-stick pan not exceed 260 degrees? Do not dry-burn.