For stainless steel products, it is recommended to use 304 steel. 304 steel (stainless steel containing 18% chromium and 8% nickel) is widely used in corrosion-resistant containers, tableware, furniture, railings, medical equipment and so on. When buying stainless steel products, look at the type of label.
Stainless steel tableware often has "13-0" (420 steel), "18-0" (430 steel), "18-8" (304 steel) three codes The number in front of the code indicates the chromium content. The number in front of the code indicates the chromium content, and the number behind indicates the nickel content. Whether stainless steel cutlery is safe or not is mainly a matter of heavy metal migration. Generally speaking, the common 304 steel on the market now has less chromium migration.