Although stainless steel kitchen equipment is not easy to rust, it is not possible to store condiments such as salt, vinegar, light soy sauce and so on for a long time. This is because this condiment contains a lot of electrolytes. If it is left for a long time, stainless steel is different. In the metal material, the electrolyte will form a galvanic reaction, causing chemical changes, causing stainless steel to rust, and even the elements harmful to human health can be separated.