Chantal Ceramics are designed of high quality stoneware that is durable enough to be used in the oven, microwave, freezer and dishwasher. The stoneware ensures superior heat retention. All Chantal Ceramics offer a non-porous glaze that won't react with foods and flavors and is safe for cutting and serving with metal utensils. Now offered are a select group of Chantal's most popular ceramic items. See for yourself. This ceramic deep dish pie plate from Chantal, rated high by Consumer Reports, delivers an evenly browned pie crust every time. Its deep design and 9.5" diameter is perfect for all types of pies.