This baking tin is made of quality, tin-coated sheet. The tin surface has to be protected from mechanical damage, therefore it sould never come into contact with metal utensils. (Use wooden or plastic utensils instead.) Use food foil when preparing cold meals in the baking tin. Wash the tin with a fine sponge. Never use a pot scourer or scourer cleansing cream and always make sue to dry the tin properly after use. The product has been approved by the State Health Institute.