Is it harmful to health to make tea with stainless steel cups?

Making tea with stainless steel cups will really affect people's health. Well, this is because the material of stainless steel cup contains a heavy metal element called chromium, and tea contains many chemical components, which can react with stainless steel cup in many ways, thus corroding the inner wall of stainless steel cup and releasing chromium, which affects people's health. Long-term intake of chromium will cause harm to human skin, respiratory tract, gastrointestinal tract and even the whole body. Although only a small amount of chromium can be ingested in making tea with stainless steel cups, long-term consumption will inevitably cause harm to the body. Experts remind that the worse the quality of stainless steel products, the easier it is to be corroded. Therefore, not only can you not make tea in a stainless steel cup, you might as well drink it in a stainless steel cup.

Experts have provided us with two clever ways to identify the quality of stainless steel. The first method is to identify the quality of stainless steel with ordinary stickers. If stainless steel is not real stainless steel, it means that the material of electroplating products is almost pure iron, so women will be very strong. Although stainless steel products also contain iron, but the content is less, only a little magnetic, magnetic is weak. In addition, because the surface coating can prevent magnetism, the magnetism of stainless steel products with better quality is weaker than that of inferior ones. Another method is to use a piece of lemon to check whether stainless steel products are qualified. We can pour lemon juice on the surface of stainless steel products and dry it after ten minutes. If it is on the surface of stainless steel products, it shows that the quality of this stainless steel product is poor, it is easy to be corroded, and it is also easy to release heavy metal element chromium, which is harmful to human health. In addition, when we buy stainless steel products, we can also choose high-quality stainless steel products by looking at the material composition of stainless steel products. Among the common stainless steel products, 304 steel is one with less content, and the corresponding number of 304 steel is 18-8, where 18 stands for cadmium content and 8 stands for nickel content, so the nickel content in 304 steel will be improved, so the corrosion resistance will also be improved.

Making tea with stainless steel cups will not only affect people's health. In our daily life, it is better to use qualified ceramics or glassware instead of stainless steel products to hold oil, salt, sauce and vinegar. As for making tea, we should also choose the right utensils. For example, when brewing semi-fermented tea such as oolong tea and Tieguanyin tea, you should choose a teapot, and when brewing green tea, you should choose a porcelain tea set. Besides, stainless steel cups can't be used to make tea, and plastic cups can't be used to make tea at all, because plastic contains many organic compounds and has a pungent smell. If it is used to drink hot water or make tea, it is very harmful to human body.