Are non-stick pans toxic and carcinogenic? Can it still be used if the coating is off? Use an experiment to tell you the answer
The society is developing and progressing, and many products that people use are now attractive and have a high sex ratio. Let’s take a wok as an example. Recently, non-stick pans are very popular in live broadcasts. The good-looking and non-stick pans have attracted many cooks and women. So why are non-stick pans non-stick pans? Woolen cloth? Is there a cancer risk?
1. Why is the non-stick pan not sticky?
There are too many pans on the market, with different functions, styles and popularity. Non-stick pans should be a very popular type of pan in recent years, so why don’t non-stick pans not stick? ?
Non-stick pans are generally coated with anti-stick coating materials on the surface . Due to the small friction coefficient and good lubricity of these materials, food is not easy to stick. Common coating materials on the market include fluoropolymers, silicone polymers , etc. Generally , coatings made of fluoropolymers have better non-stick properties, and coatings made of silicone polymers have good scratch resistance.
2. Are non-stick pans poisonous? Can it still be used if the coating is off?
There have been rumors that non-stick pans are poisonous, and once the coating is broken, toxic substances may be produced. Therefore, it is believed that non-stick pans cannot be used if the coating is removed. Is this statement true?
Most people think that non-stick pans are toxic and cause cancer, 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 not be decomposed until the temperature reaches 300 degrees. Generally, our cooking can’t reach this temperature at all, so there is no need to worry about non-stick pans There is toxicity.
However, after the coating of the non-stick pan falls off, there will indeed be some health risks. For example, food is more likely to stick to the pan, and it is easy to be burnt. It may also produce some harmful substances, increasing the risk of nasopharyngeal cancer, lung cancer, etc. , so it is recommended that after the coating of the non-stick pan falls off, it is best to replace it with a new one in time.
3. Protective coating, pay attention to a few points
The coating of the non-stick pan is the secret of non-stick, so it is necessary to protect the coating part normally, otherwise the non-stick effect may be lost if the coating falls off. Pay attention to these points when protecting the coating.
1. Avoid using some sharp shovels
Sharp spatulas may scratch the coating. It is recommended to use wooden spatulas or other heat-resistant spatulas for cooking.
2. Do not rinse with cold water immediately after cooking
This approach is likely to cause damage to the inner wall and promote the shedding of the coating. It is recommended to wait for the pot to cool before cleaning.
3. Clean with a soft sponge cloth
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 pan dry during cooking.
The reason why non-stick pans are not sticky is mainly because there is a layer of metal coating inside. This coating has good lubricity and is not easy to stick food. Generally, you don’t need to worry about poisoning when using non-stick pans, but it is recommended to replace the pan with a new one in time if the coating falls off and the rice becomes burnt. Usually, if you want to prolong the service life of non-stick pans, you must protect the coating.
References:
[1] Why does the non-stick pan stick? Is the coating toxic? Beware of being fooled and don't know... Popular Science China. 2019-11-06
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