The ceramic mold is used to create metal ingots by pouring liquid metal from a vessel in the vessel interface. It is made from clay by shaping it into a clay mold (producing two molds), then burning it in a pit kiln. Using the mold produces a separate interface where a tool mold can be used to mold tool heads. Ceramic molds have a small chance to break after use. Like all ceramic items, they can be placed on the top surface of a block by shift right-clicking on the surface.