Lodge Porcelain Enamel <em>Cast</em> <em>Iron</em> cookware can be used on gas, electric, ceramic, and induction cooktops, as well as in the <em>oven</em>. The knob is <em>oven</em> save to 400 degrees. Lifetime Warranty. This Enamel <em>Dutch</em> <em>Oven</em> with <em>Lid</em> measures 10. 75 inches in diameter and 4. 5 inches in depth. For more than 100 years, Lodge has been perfecting the process of making <em>cast</em> <em>iron</em> cookware.