With The Rock Cast Iron cookware, you will enjoy the pleasures of cast iron cooking with minimal upkeep - no need for seasoning the pan as it's already treated with our patented Rock.Tec surface treatment technology and non-stick surface. Also, it's easy to clean as food will slide off the non-stick surface easily. What's the Rock.Tec manufacturing process? It modifies the surface of the pan to form an ultra-durable rock-like finish. The result is an outstanding release performance making it easy to clean.