Our cast iron is ideal for paella: Excellent heat retention means ingredients are cooked evenly and never burnt. Staub has evolved the traditional Moroccan tajine with a strong cast iron base. The earthenware ceramic cone locks in moisture with no need to open, stir or turn. Enamelled cast iron offers great heat retention, durability and ease of use. The black matte enamelled interior is highly durable, does not discolour, rust, or chip. Special, smooth ceramic bottom is suitable for any cooking surface. No seasoning required. The more you use it, the better it gets as the oils used when cooking will penetrate the pores of the matte enamel and create a natural, smooth non-stick surface.