Why is cast iron considered better for cooking grids?

Although we consider all of our cooking grids to be of high quality and performance, cast iron is a much heavier metal than most barbecue cooking grids. Because of its high density it retains heat better, and is very effective for searing most meats (such as steak, chicken, and hamburgers). Our grids feature a pointed side for perfect sear marks and a grooved side for continuous basting.