Porcelain is a type of ceramic that is made by firing clay at high temperatures. It is non-porous and has a smooth, glass-like surface. Porcelain is used to make dinnerware, cookware, and bathroom fixtures.
Porcelain can go in the freezer, but it should not be stored there for more than a few days. When porcelain gets cold, it becomes very fragile and can easily break or crack. If you do need to store porcelain in the freezer, wrap it well in bubble wrap or towels to protect it from bumps and jostling.