First, should not be put salt, soy sauce, vinegar, vegetable soup, etc. for a long time, because these foods contain a lot of electrolytes, if stored for a long time, stainless steel will have an electrochemical reaction with these electrolytes, so that toxic metal elements are dissolved.
Second, avoid using stainless steel pots to boil Chinese medicine, because Chinese medicine contains a variety of alkaloids, organic acids and other ingredients, especially under heating conditions, it is difficult to avoid chemical reactions with it.
Third, do not use strong alkaline or strong oxidizing chemicals such as soda, bleaching powder, sodium hypochlorite, etc. for washing. Because these substances are strong electrolytes, they will also react electrochemically with stainless steel.