Food grade stainless steel is deemed safe for the storage and preparation of food, which is essential for your commercial kitchen! The most popular food-grade stainless steel is type 304. 304 grade stainless steel is also food grade, and additionally, it is acid resistant – making it the toughest, most durable option for your kitchen. All of our stainless steel benches and shelves are made from grade 304, as specified in the product descriptions.