Depending on the situation, not all 304 stainless steel is food grade.
Food-grade 304 stainless steel is a stainless steel grade produced according to American ASTM standards. It depends on whether it is marked with food-grade words.
2. Under normal circumstances, ordinary 304 stainless steel cannot meet the relevant qualification standards for food-grade stainless steel. If the surface of 304 stainless steel is not marked with special symbols and words such as food grade, it proves that it is not food-grade.Because the lead content and manganese content of ordinary 304 stainless steel are generally relatively high, and food-grade stainless steel generally strictly stipulates that the content cannot exceed the content, otherwise the food will not be safe. If you want to achieve food-grade 304 stainless steel, you need to strictly control the content of arsenic, cadmium, nickel and other metals in the production process.
