Non-stick pans are a type of pan that many families now choose to buy, because it is very troublesome for people to feel that the pans are sticking when cooking. Next dish, and when you finally wash the pan, you will find it difficult to clean off the sticky things on the pan, so to fundamentally solve the problem of sticking pans, you can only buy non-stick pans. The reason why non-stick pans are non-stick is Because there is a coating, today we will give you some specific information about non-stick coating.

What is a non-stick coating?

Regarding non-stick pans, the first thing people pay attention to is the coating. The most common non-stick coating on the market currently is Teflon. . Teflon is the transliteration of Teflon, which is a registered trademark used by DuPont on a series of fluoropolymer products. Teflon, also known as "polytetrafluoroethylene", has good chemical corrosion resistance and aging resistance, and is difficult to corrode even with aqua regia. Products made of polytetrafluoroethylene can be placed outdoors and exposed to the sun and rain without any damage for 20 to 30 years. Teflon also has an ultra-low coefficient of friction and a surface that makes it difficult for other substances to adhere to its surface. Teflon dominates the market for nonstick coatings.

In addition to Teflon, some other types of non-stick coatings can be seen in China, such as ceramic coatings, Japan's Dakin fluorine coatings and the United States' Whitford Coating etc.

Coating: In 2004, the Teflon incident broke out all over the world. The main reason was that perfluorooctanoic acid and its salts (PFOA), the main ingredient in non-stick coatings, were found to be carcinogenic. Causing people to panic. It is also very easy to be scratched by metal utensils and will decompose when the temperature exceeds 240 degrees. Therefore, countries began to study how to solve the problem.

Penetration layer: South Korea's HAPPYCALL product was successfully developed by South Korea's HAPPYCALL Co., Ltd. and the National University of Korea. It uses nanotechnology to nanometerize diamonds and then penetrate them with platinum at high temperatures. A simple understanding is that in metal The surface microns merge with each other. It is more resistant to wear, less prone to delamination and absolutely harmless.

Precautions for using non-stick pans

Although the coating of non-stick pans is toxic under certain conditions, it is still safe as long as you follow the precautions when using non-stick pans.

Non-stick pans cannot be used to make acidic foods. The bonding strength of polytetrafluoroethylene is not high. Acidic substances can easily corrode the metal body. Once the body is corroded, it will expand, thereby expanding the coating and causing the coating to Extensive shedding. It is understood that many of the foods consumed daily are acidic foods, including various meats, eggs, sugar, rice, etc.

The use temperature should be limited to below 250°C. The national mandatory standards stipulate that polytetrafluoroethylene is used as the main raw material and is mixed with certain additives to form a polytetrafluoroethylene coating, which is coated on aluminum and iron. Metal surfaces such as plates are sintered at high temperatures and used as anti-stick coatings for non-acidic food containers. The use temperature is limited to below 250°C.

Do not use a shovel. Be careful of damage. Using a shovel can easily damage the coating of the non-stick pan and allow the toxic paint to blend into the dishes, which is harmful to your health. Check the non-stick pan before using it. The coating may peel off to avoid serious consequences.

In the above, we have introduced you to some information about non-stick pans. In this article, we mainly introduce to you two aspects of knowledge about non-stick pans. You can see that we This article is divided into two parts to explain it to you. First, in the first part, we introduce what non-stick coating is, and then in the second part of the article, we introduce the precautions for using non-stick pans. Because some users are still worried about the non-stick coating, you should be able to understand after reading these.

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