Because porcelain conducts heat gently and is easy to clean, French cooks often roast meats and poultry in a deep, porcelain dish rather than a metal roaster. Made in several numbered sizes by Apilco, these dishes are also useful for vegetables, casseroles and fresh-fruit crisps that benefit from their depth. The unglazed undersides increase the absorption of heat. Apilco, the renowned French manufacturer, has supplied chefs and home cooks with top-quality porcelain wares for nearly a century. Microwavable; oven and dishwasher safe. Made in France.