America's favorite porcelain on steel cookware, for 125 years. The porcelain on steel cookware of Graniteware is superior to chemical non-stick surfaces. Inert and composed mainly of glass, the porcelain is odorless, tasteless, and will not interact with food. Created from sand and natural clay, the porcelain coating is sustainable and, ultimately, renewable. The steel, encased in the porcelain, does not oxidize and will not interact with the cooking or taste of your food.