1. Stainless steel molds: the advantage is durable, not easy to deform; the disadvantage is that the price is higher, there may be safety issues, not easy to clean.
2. Silicone mold: the advantage is good elasticity, easy to take off the mold; the disadvantage is that the price is higher, need to be careful when using.
3. Plastic mold: the advantage is cheap, lightweight; disadvantage is not high temperature resistance, may be harmful to the body.