Food grade silicone is made of silicic acid polycondensation of inorganic polymer colloidal materials, non-toxic, tasteless, stable chemical properties, in addition to caustic soda and hydrofluoric acid, under normal conditions, food grade silicone will not take any reaction with acid and alkali salt. At the same time. Food-grade silicone can withstand high and low temperatures and can be used in microwave ovens without toxic side effects on the human body. Food-related silicone products have strong stability properties, moreover, they are prone to meet the requirements of health, safety, and environmental protection. Just like o-ring, seals, baby feeding products are made of food-grade silicone.