In addition to its cooking abilities, a cast iron barbecue griddle is also easy to clean and maintain barbecue griddle cast iron. With proper care, a cast iron griddle can last a lifetime, and only gets better with age. To clean your griddle, simply wipe it down with a paper towel or a cloth while it is still warm. Avoid using soap or harsh chemicals, as this can damage the seasoning on the griddle. Instead, use a mild detergent and hot water to clean off any stubborn food residue. After cleaning, be sure to dry the griddle thoroughly and apply a thin layer of oil to keep it seasoned and rust-free.