Porcelain

Porcelain is the strongest, and also the most expensive type of clay. It is a lot stronger than earthenware, but also harder to work with. You have to work hard to shape the clay, and porcelain doesn’t hold its shape easily. You need a lot of water to make porcelain workable, which limits how much time you have to work with it. It also shrinks a lot in the oven, so the chance of cracks is pretty substantial. Porcelain is fired at 1300°C or even more.