With Chef Series, every meal you prepare provides the maximum nutritional value. Specially designed for Water-less, Grease-less Cooking, the cookware helps retain only the best in your food, resulting in tastier meals that are quicker and easier to cook. Featuring a 3-ply construction, the Chef Series range is crafted to ensure an efficient spread of heat throughout, cooking food evenly to perfection with less water, oil or additives necessary. Better yet, with a 4X stronger tempered glass lid to top it off, food is cooked naturally in a complete circle of heat, locking in great flavors and vital nutrients.