Traditional baby products are made of plastic, which requires the addition of a large amount of antioxidants, plasticizers, stabilizers, etc. during production. These additives are harmful to the human body, and plastic can cause environmental hormone substances to seep out and accumulate in human adipose tissue under high temperature conditions. Silicone does not contain environmental hormones and is made of medical grade silicone, which is safe and healthy for babies. Silicone is still a breathable material, and even at room temperature, breast milk is not easily spoiled. It can better maintain the freshness of breast milk when refrigerated or frozen. Because silicone is a harmless, colorless, and odorless material for the human body, we can use it with peace of mind.