Will stainless steel kitchenware affect human health? -Product knowledge-Hardware products factory

Studies have shown that long-term exposure to acidic substances in stainless steel kitchenware will corrode the stainless steel, thereby releasing the heavy metal chromium inside. Long-term use will cause chromium poisoning and cause serious harm to human liver function. However, as long as the stainless steel kitchenware does not corrode during use, the chromium in the stainless steel kitchenware will not migrate to the food, and it will not cause chromium poisoning. The corrosion resistance of high-quality stainless steel kitchenware is very good, and generally will not cause chromium poisoning. However, it should be noted that acidic substances are indeed corrosive to stainless steel and will cause the chromium in the stainless steel to dissolve out. Take precautions when using stainless steel kitchenware. “Salt and vinegar will produce hydrochloric acid when they are put together. Putting high-concentration vinegar and salt in stainless steel kitchen utensils for a long time heating and cooking at high temperature will corrode the stainless steel kitchen utensils and dissolve chromium.” According to my country’s National Food Safety Standard 'Stainless Steel Products' (GB 9684-2011) stipulates that the migration of chromium in stainless steel products cannot exceed 0.4 mg/dm2. The original Ministry of Health explained when formulating the limit standard that, under normal circumstances, stainless steel products do not constitute a food safety risk during the process of serving, cooking or contacting food; when the chromium migration of stainless steel products exceeds the limit, it may be possible Harm to human health. my country's quality inspection department has repeatedly stated that chromium is irritating and corrosive to the skin, mucous membranes, and digestive tract, and it is easy to enter human cells. Inhalation of higher levels of chromium can cause damage to internal organs such as liver and kidney, accumulate in the human body and cause cancer, and may also induce genetic mutations. Since chromium may be harmful to health, why not require stainless steel kitchenware to contain chromium? The answer is that it cannot be done. The reason why stainless steel does not rust and has good corrosion resistance is because the surface of stainless steel can naturally form a stable, dense and strong passivation film, and chromium is an essential component for forming a passivation film on the surface of stainless steel. The passivation film of high-quality stainless steel kitchen utensils is very strong and stable, and has good corrosion resistance. It will neither fall off nor dissolve in normal use, so there will be no chromium dissolved out and migrated into the food to cause poisoning. 'However, inferior stainless steel kitchen utensils with poor corrosion resistance are easy to corrode and rust contaminate food, and there is a certain risk of chromium poisoning.' Qualified stainless steel products must not only contain chromium, but also must contain enough chromium. The chromium content of stainless steel products usually must reach more than 13% to avoid rust and corrosion. The reason why poor-quality stainless steel kitchenware is prone to rust is precisely because its chromium content does not meet the standard, which affects the corrosion resistance. Chromium, which is supposed to play a protective role, will migrate to food and become a health hazard. Therefore, to avoid chromium poisoning caused by stainless steel kitchenware, the quality of the stainless steel kitchenware itself must first be guaranteed. Secondly, 'If you encounter stainless steel kitchenware that is prone to rust, it is better to use less.' According to the tips of the quality inspection department, stainless steel kitchenware should avoid prolonged contact with acids and alkalis; do not use stainless steel kitchenware to torment Chinese medicine to prevent stainless steel Under heating conditions, it reacts with alkaloids and organic acids in traditional Chinese medicine to dissolve chromium; stainless steel kitchenware should be replaced in time when it is deformed or the surface is worn or roughened.
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stainless steel kitchen tools continued to evolve to having strong manufacturers develop huge marketers and people came to value their opinions about what to buy.