Carbon Steel pans progress as you do, and the end results are one-of-a-kind pieces that reflect back your journey in the kitchen. de Buyer's Mineral B line arrives protected by beeswax, ensuring your investment arrives rust-free. de Buyer always refines with an eye toward the natural world: they discovered that beeswax protects pans from oxidation and improves seasoned steel. With gradual seasoning the pan will have naturally non-stick properties. Mineral B allows you to sear, stir, brown, and grill at high temperatures, both on the stove and in the oven. Handwash only using mild dish soap. Dry immediatly after washing to avaoid rust. Made in France.