This 4 Qt. Porcelain Oval Dutch Oven with Lid is made of carbon steel coated with a porcelain enamel and trimmed in stainless steel. There will be variations in the shading of colors and pattern formations which are the results of the hand-dipped process. This 4 Qt. Porcelain Oval Dutch Oven with Lid is created using a traditional handmade production method that has changed very little since the late 18th century. Each piece is hand-dipped and fired at extremely high temperatures causing the steel to contract and fusing the porcelain enamel to the steel, creating a durable, non-porous surface.