Is the coating of thermos cup harmful to human body?

Ceramic coated thermos cups are made of silica gel coating or Teflon coating, not real ceramics. After national tests, they are non-toxic. But because it is a coating, it may fall off after a long time. Once the fallen coating is drunk with the liquid in the cup, it may cause harm to human health. Therefore, the ceramic coating of the thermos cup has certain security risks. When buying thermos cups, you should pay attention to avoid thermos cups with coated liners.

When purchasing a thermos cup, you must choose a food-grade stainless steel liner, which is suitable for heat preservation and cold preservation, relatively resistant to falling, safe and convenient for daily use, but not suitable for making tea and coffee. It is recommended to buy a thermos cup with an antibacterial stainless steel liner. Cu+ antibacterial ions are added to food-grade stainless steel, which not only has antibacterial properties, but also has better corrosion resistance, and can be used for healthy drinking in daily life. For details, please refer to Japan's first antibacterial thermos cup. This information is available on Baidu.