All-Clad NonStick Cookware features not just a coating but a revolutionary, reinforced system for professional grade nonstick cooking. Beneath the nonstick cooking surface is All-Clad's unique triple-ply construction for maximum heat conductivity: a layer of 18/10 stainless steel; a pure aluminum core; not just at the bottom but all the way up the sides; and an exterior metal from the Stainless, LTD or Master-Chef Collections. For best results, use medium to low heat and utensils of plastic, rubber or wood.