What is Seasoning? Seasoning is simply oil baked onto the iron that prevents rust and provides a natural, easy-release finish that continues to improve with use. Why CLARK’S Cast Iron Seasoning? CLARK’S uses coconut oil to season traditional cast iron and carbon steel cookware. The oil is highly refined, and contains no animal fat, peanut oil, or paints. Unlike flaxseed, grapeseed, canola or palm oil, CLARK’S Cast Iron Oil will never go rancid and does not need to be refrigerated. It is very important to maintain the seasoning of your cast iron and seasoned steel cookware by applying a very thin layer of oil after each cleaning. This will help keep you cooking for decades. Speaking of cleaning, don’t forget to purchase CLARK’S Cast Iron Soap for a powerful, Castile based coconut soap designed specifically for cast iron and seasoned steel cookware. Use CLARK'S Cast Iron Seasoning Oil on your carbon steel or cast iron - Pots and Pans Skillets Woks Dutch Ovens Griddles As always, if you have any questions or concerns about our products or your order, PLEASE contact us through Amazon and we'll be happy to help!