For thousands of years, people have been using cast iron for cooking. Not only is it durable and long-lasting—cast iron cookware is often handed down through generations—it's an efficient conductor that cooks consistently across every square inch. It's no surprise then that cast iron grates have become a popular option on many grills. Because it absorbs and transfers heat better than any steel, cast iron cooks food evenly at lower temperatures and sears exceptionally well at high heat, sealing in all that delicious BBQ flavor. But that's not the only reason we love cast iron.