Back by popular demand, Calphalon's original hard-anodized surface is reborn with Calphalon Commercial Hard-Anodized Cookware. This cookware collection was made with professional standards in mind offering the home gourmet superior performance & durability. This collection of cookware is ideal when searing meats or deglazing. Because the anodized surface is 80% harder than stainless steel it is safe to use all cooking utensils. Each piece is made from a heavy gauge aluminum resulting in even heat distribution and is oven/broiler safe. The riveted stainless steel handle will stay cool when cooking on the stovetop. This collection also features tempered glass lids with a stainless steel handle and is oven safe up to 450°. Made in USA, Lifetime Warranty.