Aluminum Chinese Wok/Frying Pan 30cm DuPont Approved Silverstone Non-Stick Surface Wooden Handle Features Each product is cast from high-purity aluminum, so it rarely blisters or deforms during use. The surface is treated with DuPont's Silverstone. Unlike conventional methods where fluorine resin is applied to the aluminum surface, this process fuses the aluminum and resin together. Therefore, it has superior resistance to scratching, peeling, and abrasion. The resin is also 30-50% thicker than other non-stick cookware, creating a three-layer non-stick surface. The thickness of the bottom, unlike other cookware, mellows the taste of the food. You can cook with a small amount of oil, or almost none at all. This is a great advantage for calorie counting and for those concerned about cholesterol. Food does not stick. Easy to clean. Its outstanding non-stick properties eliminate the need for scrubbing or soaking. ↑ Quoted from the instruction manual #PapiNabe (Papi Pot)