The cooking surface of Futura Nonstick Cookware is made with a unique patented process by which high quality nonstick coating (made in Germany) is locked firmly into the tough Hard Anodised surface underneath. This means that Futura Nonstick, properly used, will last longer than ordinary nonstick. The round bottom has two important functions: it allows you to get cooking depth with minimal amount of oil, and the curved body spreads the gas flames and the gases well, heating food quickly and evenly.