We collaborated with the legendary coppersmiths at Ruffoni to create our exclusive Thermo-Clad™ Copper series. Designed to bring the joys of cooking with premium copper to home cooks, the bonded pans combine beautiful mirror-finish copper with the practical maintenance of stainless steel. This stock pot offers maximum heat responsiveness on the stovetop, giving you more control when simmering stocks and soups. 8-qt. cap. Thermo-Clad technology bonds thick, mirror-polished copper to a thin interior layer of 18/10 stainless steel. Made from 1.2mm-gauge copper. Solid copper is the fastest heat conductor, ensuring quick, efficient and uniform heating with precise temperature control. Stainless-steel lining is nonreactive and ensures ease of use and maintenance for a lifetime. Ergonomic stainless-steel handle provides a comfortable grip and maximum control. Double-wall insulated stainless-steel lid keeps food warm. Oven safe to 450°F. Handcrafted in Italy by Ruffoni exclusively for Williams Sonoma.