With the Zwilling Vitality Cookware Set 5-piece, you can cook more energy-efficiently. The Sigma Classic+ sandwich base in these pans spreads heat evenly across the bottom and holds onto heat for longer. This way, you can turn the heat down more quickly and save energy. You don't have to lift the lid to see how your dish is doing, because it's made of glass. So you won't lose heat unnecessarily. Thanks to the volume marking on the inside, you can measure the water you add directly in the pan. You can easily put your pot of soup on the table with the cool stainless steel handles. After use, clean the pans in the dishwasher.