Smithey's polished cast iron cookware features a smooth surface that becomes naturally non-stick with use. Each piece is carefully buffed, ground, and polished to create a beautiful, satin-like finish. To enhance its non-stick properties, we recommend using oil, which helps build additional seasoning layers over time. Smithey cookware is compatible with all cooktops, including induction, electric, and gas, and is completely safe for use in the oven and on the grill. With curved interior sides designed for movement and flipping, along with longer handles to keep your hands safely away from heat, Smithey cookware is engineered to handle anything on your cast iron cooking journey. These beautiful pieces are designed to provide a lifetime of meals and memories.