Talking about the health risks of non-stick (PTFE) coatings

 Classification and detailed explanation of non-stick coating

Here are many insignificant things in life. One of them is that the cooking is sticky, causing the cooking to be unpalatable. Not only is it bad for health, but it also greatly reduces the sense of happiness in the kitchen.

So choosing a good coating non-stick pan is good for you and your family's health.


1. The famous Teflon (Teflon)

About 70 years ago, chemist Dr. Roy J. Plunkett invented polytetrafluoroethylene resin in DuPont’s Jackson Laboratory in New Jersey, USA. DuPont used "Teflon" as the product’s Brand name.

Subsequently, DuPont has developed a series of products in addition to Teflon® polytetrafluoroethylene resin, including Teflon® AF (amorphous fluoropolymer), Teflon® FEP (fluorinated ethylene propylene resin), Teflon® FFR (fluoropolymer Foam resin), Teflon® NXT (fluoropolymer resin), Teflon® PFA, etc.

There are rumors that it may cause cancer for a while. Because of the need to add ammonium perfluorooctanoate in the earlier manufacturing process, the substance itself is non-toxic, and pyrolysis can produce toxic gases. But there is no problem with the operating temperature range of non-stick pans. DuPont later clarified this issue. Of course, now DuPont has also launched a new product that is completely free of ammonium perfluorooctanoate.

- The grade of Teflon coating

Prima" coating thickness is about 6-10 microns, generally used for baking trays. "Classic" or "Klassik" is the most common, the minimum thickness of the coating is 25 microns, double-layer coating technology, suitable for use once or twice a week The situation (home use). My understanding is to use it twice a week. "Xtra" use level: Regular Use, my understanding is once a day. "Select" is a higher level, the minimum thickness of the coating is 35 microns, 3 layers The coating technology is suitable for use about ten times a week (for household use). Degree of use: Demanding Use. My understanding is that it must be used once or twice for each meal.



-Joe Clyde Le Shigao Non-stick Cookware Series

"Platinum" is a higher level, the minimum thickness of the coating is 40 microns, special anti-wear particles are added, and the three-layer coating technology is suitable for people who often cook and require higher requirements (home or quasi-professional). It can withstand the brushing of normal metal utensils and even the grinding of abrasives. My understanding is that every meal must be used several times, just like a wok at home.

"Platinum Pro" or "Professional" professional non-stick coating; suitable for professional occasions, can be used for a long time. My understanding is to burn anyway, as long as it is not malicious damage. "Autograph" top Teflon non-stick coating. It is suitable for the top professionals and can be used for a long time to meet the requirements of the gourmet level. Designed to stand up to constant use and expectations by avid/gourmet cooks. My understanding is that durability is not a problem and that the coating may affect the taste.

It is generally difficult to distinguish between Teflon classic and Teflon Platinum with the naked eye. They are usually distinguished by brand, price, and regular sales channels. You can’t buy a pot cheaply. The price varies greatly depending on the level. It’s most important for you. Although high-quality Teflon coating is durable, it cannot guarantee a lifetime. The coating will be worn out sooner or later, but the service life can be prolonged through careful maintenance. The spatula caused the most damage to the Teflon coating

Most spatulas are hard and sharp on the edges so they can cause damage to the Teflon coating. Therefore, do not use hard and sharp iron spatulas. Use wooden or bamboo spatulas and nylon spatulas instead. It is best to use a special spatula for coated pans, that is, a silicone spatula, which is soft and not afraid of high temperatures, and is most suitable for Teflon coating. The most important point is that when the pot is very hot when it is just used up, you must not wash the pot with cold water. You must use hot water or let it cool for a while, and then scrub with a soft cloth. Prevent thermal expansion and contraction from causing the coating to peel off.

 

2. Whitford series coatings.

Huafu Company is specialized in coatings, and its products also account for a considerable market share compared to DuPont. The most powerful is a kind of titanium, which is claimed to be able to use a shovel, a permanent non-stick coating. Of course, it is the most advanced.


-Huafu Coating Level

Xylan series coatings are the most important products of Walford in the United States and are designated products for many manufacturers, importers and exporters, and retail chain stores. This series of coatings are widely used in various products, including affordable to luxurious cookware, various bakeware, electric frying pans, electric grills, rice cookers, bread ovens, coffee machines, sandwiches Machines, waffle machines, and so on. Xylan coating has three structures: one-layer, two-layer, and three-layer.

Quantum2 has a longer service life than any traditional non-stick coatings (even those with the latest and impressively improved formulations). This is because a variety of space-age inorganics are used as reinforcement materials in the formulation of Quantum2. Quantum2 has many advantages. Its reinforcement element structure has been significantly improved. We have adjusted the fluoropolymer so that it can be more tightly combined with other elements in the coating to achieve the highest durability. Compared with traditional non-stick materials, its non-stick surface is also smoother and has a more attractive luster.

Quintana uses metallic titanium in the formulation to achieve superior durability. QuanTanium's multi-layer titanium-containing reinforcement coating makes it resistant to scratches on almost any item. QuanTanium perfectly combines non-stick coatings and titanium, which creates extraordinary wear resistance and unparalleled non-stick performance.

Eclipse is our latest product. Its unique bottom layer is made of resin and special hard materials. Since the Eclipse primer has no non-stick components (all other cookware primers have), it can fully exert (a) bonding and (b) reinforcement Function. The middle layer also contains special reinforcement materials, while the top coating has superior non-stick properties. The combination of the above coatings makes its wear resistance far surpassing all other internal reinforcement coatings on the market.

 Excalibur (the strongest) is a unique non-stick coating of Walford, USA. The special surface reinforcement technology has earned it the reputation of "the strongest and most durable non-stick coating in the world". The method is to spray a patented stainless steel alloy on the surface of the pot to form a series of "mountains" and "valleys", which are then firmly welded to the pot after cooling and hardening. Then, apply several layers of tough non-stick paint to fill in the "valleys" and cover the "mountains", which are firmly bonded to form amazing durability. This makes Excalibur the only non-stick coating with the strength of stainless steel and the best performance in the world.

JOYCLAD non-stick pan imported from South Korea uses this coating.

 

3. Zirconium phosphate non-stick coating

Zirconium phosphate is a new type of multifunctional mesoporous material developed in recent years. It has a special layered structure, has the common characteristics of layered compounds, and has high chemical stability. It has both ion exchange performance like ion resin and zeolite The same shape-selective adsorption and catalytic performance, high thermal stability, acid and alkali resistance, and mechanical strength.

 

Zirconium phosphate can be used in the best non-stick pan coatings, which can effectively improve the high-temperature resistance of the coating and enhance the wear resistance and scratch-resistance of the coating; at the same time, because zirconium phosphate is an environmentally friendly non-toxic material, it is harmless to the human body and is an excellent non-sticky material. Pot paint additives.

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