Xtrema Ceramic Cookware is Durable and Dependable. Ceramic has natural infrared cooking properties, and there are many benefits of using ceramic saucepans to prepare everyday meals. All xtrema ceramic cookware sets are made without metals or any unsafe, non-stick coating. Cookware that contains metals can leach chemicals and flavors into your food, making them potentially dangerous to your health. Don’t settle when it comes to your kitchen.