Yes and no. Yes, because it's a type of metal that does not naturally rust. Enameled cast iron cookware is made of cast iron that has been covered in porcelain enamel. The porcelain enamel prevents rusting by creating a coating that prevents moisture from penetrating the metal. No, because over time, the enamel can chip or scratch and expose the iron underneath to air and moisture. This can cause rust to develop on the pan.