Food Contact Materials (FCM) refer to materials that come into contact with food during normal use of a product. The widespread use of various kitchen appliances such as rice cookers, juice machines, and coffee machines has brought great convenience to our daily lives, but the materials that come into direct contact with food may pose safety hazards. Food contact materials in the product, such as plastics, rubber, colorants, etc., may release a certain amount of toxic chemical components such as heavy metals and toxic additives during the use of the product. These chemical components can migrate into the food and be ingested by the human body, posing a threat to human health. Food contact materials and products may affect the odor, taste, and color of food during contact, and may release a certain amount of toxic chemical components such as heavy metals and toxic additives, which can migrate into food and be ingested by the human body, posing a threat to human health. Relevant standards ISO4531-1:2000: Ceramic in contact with food, release of cadmium and lead from glassy objects ISO4531-2:1998: Ceramic in contact with food, release of cadmium and lead from glassy objects, allowable limit values ISO6486-1:1999: Ceramic ware, glass-ceramic ware, and glass tableware for containing food. Release of lead and cadmium ISO6486-2:1999: Ceramic ware, glass-ceramic ware, and glass tableware for containing food. Release of lead and cadmium, Permissible limit values