Calphalon Contemporary Hard-Anodized Aluminum Nonstick Cookware, Sauce Pot, 5-quart, Black Heavy-gauge aluminum construction ensures even heating and is hard-anodized for durability. It also makes it dishwasher-safe. Interior includes three layers of nonstick coating  two layers provide durability and the third layer offers easy release performance. The long, brushed stainless steel handles are designed to stay cool on the stovetop. Pans and covers are also oven safe, making it ideal for finishing a gourmet dish. High sides and narrow opening minimize evaporation during slow process of stock- and soup-making. Heavy-gauge sloped bottom heats evenly makes stirring easier. The nonstick surface means you can cook healthier using less fat, with effortless cleanup. Comes with Calphalon's full lifetime warranty.