The de Buyer Mineral B Element pans are made of carbon steel, which is not stainless. This seems like a disadvantage, but it definitely is not! The pans are all solid and heavy and have no non-stick coating. The more you use the pan the more it forms a coating of itself. Because the pans has no non-stick coating, they can bake at very high temperatures. You can also feel free to use steel utensils without worrying about damaging the non-stick coating. The Mineral B Element pans with a thin layer of beeswax on the baking area. This makes the risk of corrosion a lot lower. In addition, this helps to flavour the seasoning in the pan. As a result the pan has somewhat of a non-stick layer by itself, compared to the regular Acier Carbone-series. The B Element deBuyer Mineral pans are suitable for all heat sources. Also for induction and they can go into the oven. These pans do need a special treatment, but when used properly a pleasure to work with.- Coated with an organic beeswax protective finish to protect against oxidation- 100% natural steel PTFE and PFOA free. No chemicals added- Environmentally safe production- Ecologocal, recyclable, and good for the environment- High temperature: Perfect for sealing, browning and grilling- Authentic design, symbol of French gastronomy- “Lyonnaise” shape for perfect flipping