A natural product handcrafted from Burgundy clay in Burgundy, France. Burgundy clay diffuses the heat evenly, so heat surrounds the food while cooking, allowing for even heat distribution. This bakeware is fabulous because it can go directly from the freezer to the oven to your table, can be used in traditional and microwave ovens as well as under the broiler, it will not craze and it extremely easy to clean. Available in a variety of beautiful colors and styles.