The Rectangular Casserole with Lid is a versatile piece that is essential for all Le Creuset stoneware collections. This piece is great for marinating, baking or keeping your dish warm at the table. Ideal for transporting dishes to parties and picnics. The Rectangular Casserole with Lid will ensure that you always serve with style.Stoneware fills a gap in the bakeware market and meets the high standards of today's gourmet baker. In coordinated colors, this stoneware is fired at 1950??F for a durable, non-porous enamel. Stoneware can go from the freezer or refrigerator straight to the oven and then to the table. Le Creuset Stoneware is not for use on the stovetop. Clean Stoneware by hand or in the dishwasher. Le Creuset Stoneware is lead free.