Are non-stick pans toxic or carcinogenic? Can it still be used with the coating off? Tell you the answer with an experiment
The society is developing and progressing, and many products that people use are now all good-looking and have a high sex ratio. Take the frying pan as an example. Recently, non-stick pans are very popular in live broadcasts. They look good and sound non-stick. They have attracted a lot of cooks and cooks, so why non-stick pans and non-stick pans Woolen cloth? Is there a cancer risk?
1. Why do non-stick pans not stick to pans?
There are too many pots and pans on the market, with different functions, different styles, and different degrees of popularity. Non-stick pans should be a very popular pot in recent years, so why are non-stick pans not sticky? ?
Non-stick pans are generally coated with anti-stick coating materials on the surface . These materials are not easy to stick to food due to their small friction coefficient and good lubricity. Common coating materials on the market include fluoropolymers, silicone polymers , etc. Generally, fluoropolymer coatings have better non-stick properties, and silicone polymer coatings have better scratch resistance.
2. Non-stick pans are toxic? Can the coating still be used?
There have been rumors that non-stick pans are toxic. Once the coating is broken, toxic substances may be produced. Therefore, it is believed that non-stick pans cannot be used after the coating has been removed. Is this statement true?
Most people think that non-stick pans are toxic and carcinogenic, mainly because the coating contains Teflon. In fact, Teflon has little effect on the human body, and regular manufacturers generally do not use this substance , so there is no need to worry about toxicity.
Beijing University of Chemical Technology once conducted an experiment and found that the Teflon scraped from the non-stick pan will only be decomposed when the temperature reaches 300 degrees. Generally, our cooking cannot reach this temperature, so there is no need to worry about the non-stick pan. Toxicity is present.
However, after the non-stick pan coating is removed, there are indeed some health risks. For example, food is more likely to adhere to the pan and be easily scorched, and some harmful substances may also be produced, increasing the risk of nasopharyngeal cancer, lung cancer, etc. , so it is recommended to replace the pan with a new one in time after the coating of the non-stick pan comes off.
3. Protective coating, pay attention to some points
The coating of the non-stick pan is the secret of non-stick, so it is necessary to protect the coating part, otherwise the non-stick effect may be lost when the coating falls off. Pay attention to these points for the protective coating.
1. Avoid using some sharp shovels
Sharp spatulas may scratch the coating, it is recommended to use a wooden spatula or other heat-resistant spatula for cooking.
2. Don't rinse with cold water immediately after cooking
This method is likely to cause damage to the inner wall and promote the peeling of the coating. It is recommended to wait for the pot to cool before cleaning.
3. Use a soft sponge to clean
It is best not to scrub vigorously with a metal ball, so as not to damage the coated part.
4. Avoid dry burning
It is best not to keep the pot dry during cooking.
The reason why non-stick pans are non-stick is mainly because there is a layer of metal coating inside, which has good lubricity and is not easy to stick to food. Generally, there is no need to worry about toxicity when using a non-stick pan. However, it is recommended that if the coating falls off and the rice is mushy, you should replace it with a new pan in time. Usually, if you want to prolong the service life of the non-stick pan, you must protect the coating.
References:
[1] Why does a non-stick pan stick? Is the coating toxic? Beware of being fooled and still don't know... Popular Science China. 2019-11-06
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