The Korin Durable collection is made out of a special clay with 30% more alumina, fired at a high temperature of 1350ºC (2462ºF), then glazed with a lead-free hard glaze. This makes for a stronger and longer lasting porcelain perfect for any restaurant. It is also dishwasher and microwave safe. With its versatile selection and elegant finish, it is set to compliment any dish. An affordable cornerstone for a beautiful tableware collection.