Steel, Free of PFOA and PTFE. With extra thick baseplate that distributes heat well and can withstand induction without problems. The saucepan is made entirely out of carbon steel which improves the more you use it. It heats up and cools down much faster than cast iron, giving you more control over the cooking process. Covered with organic beeswax to protect the surface during transport but also must be removed before use. You need to boil water in the saucepan before you use it for the first time.