Porcelain is the finest and most precious of all bakeware materials. Made In’s porcelain bakeware is made from a 202 year old recipe held by skilled artisans in the Loire Valley. Kanolins, clays, quartz, and feldspars are mixed, shaped, enameled, and baked three times for over 50 hours at temperatures exceeding 2500°F. This process results in bakeware that is naturally non-stick, with even heating to ensure even baking. It is thermal shock resistant so that it can go from freezer to oven to table. This classic 9” x 13” baker will evenly bake casseroles, brownies, crumbles and more. You’ll enjoy serving your special recipes in this simple yet beautiful dish.