Columbian Home is America's favorite porcelain on steel cookware for the past 125 years. This cookware 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, 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.