Paul Stewart's saggarware is wrapped with wire, copper tape, and other metals and then placed inside a container along with copper powder, salt, and combustibles such as sawdust, paper, and pinecones. It's wonderful that waste natural materials can be used to create such striking beauty. Once fired (heated), the salt and copper powder cause pink blushes and the wire causes metallic hues fused onto the surface of the pot. The smoke from the combustibles turn areas of the pot grey and black. Because saggarware is fired at a relatively low temperature, it is not watertight.