Emile Henry"s 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 ceradon is an exclusive process to produce strong and durable ceramic bakeware and tableware for everyday use * Extremely hard glaze - resistant to scratching; shock resistant - highly resistant to chipping * Thermal properties: keeps hot, keeps cold - use directly from freezer to oven to table (0-Degree F to 500-Degree F)