Emile Henry's Oven Ceramic bakeware and tableware is made in Marcigny France since 1850 from high fired Burgundy clay. The natural clay is unsurpassed for conducting and retaining heat. Emile Henry's Oven Ceramic is made with an exclusive process to produce strong and durable ceramic bakeware and tableware for everyday use. Perfect for making lasagna or roasting a chicken. The clay is an excellent material for retaining heat, so lasagna keeps its warmth in these dishes as you gather your guests to the table. The glaze is lead-free and won't crack, discolor, or scratch. This baker goes into the freezer, oven, microwave, dishwasher, and under the broiler, and is very easy to clean.