As part of its complete line of premier cookware, All-Clad Metalcrafters offers COP-R-CHEF, a beautiful assortment of copper-clad stainless steel cookware with an aluminum core. COP-R-CHEF combines the old world elegance and beauty of copper with the practicality and durability of modern technology. Each piece of All-Clad cookware features a unique metal bonding construction. COP-R-CHEF cookware combines an easy-to-care-for, highly polished cooking surface of 18/10 stainless steel that is stick and corrosion-resistant with a thick core of three separate layers of aluminum. The aluminum core retains heat and evenly distributes it along the bottom and up the sidewalls of the utensil. COP-R-CHEF’s extra thick copper exterior offers the look of a sophisticated piece of equipment, while the stainless steel interior adds practicality by not discoloring or retaining cooking odors. Unlike traditional copper cookware, All-Clad’s COP-R-CHEF never needs re-tinning and is manufactured with a lifetime guarantee. All-Clad’s signature “stay cool” long stainless steel handles are permanently attached to the copper cookware with stainless steel rivets.