The advantages of a cast iron kettle are its cost-effectiveness, even heat distribution, lack of chemical fumes, durability and non-stick surface when seasoned. It is important to maintain cast iron cookware by seasoning it with oil.
Cast iron is often less-expensive than other forms of cookware. It distributes heat evenly and can be used in the oven or on the stove. Cast iron does not contain the potentially harmful chemical compounds found in various other cookware. Cast iron is made to last indefinitely if well-maintained. Its surface is non-stick when seasoned well. Some makers of cast iron cookware sell it pre-seasoned for easier initial maintenance.