TOPPER Hard Anodized surface is non-toxic, non-staining and non-reactive with foods. For traditional cooking with normal quantities of oil or butter, TOPPER hard anodized cookware presents the ideal cooking surface. Foods that need to be crisp or browned will cook fast and well. Cooking that uses sufficient water or other cooking liquids will also do well in TOPPER hard anodized cookware. Each pan is given a technologically advanced surface coating to give you a superb cooking surface. It is thermal-efficient, heats fast and evenly is not spoiled by high heat. It is tough and durable, will not tarnish or corrode and will stay looking new for years.