Cast Iron is the best grill grate material if you are looking for a grill grate material that can hold heat. Cast Iron grill grates can hold more heat since they generally have a larger volume. This means that the grates stay hotter for longer when the food is added on the grill, which produces beautiful grill-marks that we all know and love.
You must buy a Cast Iron Grill Grate if you are looking to cook delicate meats, like fish or thin slices of chicken. This is because the heat retention capability of a Cast Iron Grill Grate allows you to cook at lower temperatures, preventing these delicate meats from drying out.
Don’t buy a Cast Iron Grill Grate if you habitually cook on high heat. This high heat results in unwanted charring of the meat if heated directly. Furthermore, if you own a high-powered infrared grill and turn up the heat too quickly, the high temperature on one side of the grate can cause the cast iron to warp.
When choosing a Cast Iron Grill Grate, select a grate with as much of a smooth surface as possible. Grates with a matte finish have an attractive, rustic look, but they are often more prone to rusting. This is because they are more difficult to clean and dry and have a larger surface area exposed to the atmosphere. This combination makes them corrode faster than their glossy-finish counterparts.
You may also want to avoid buying Cast Iron Grill Grates that are very thick. These prevent smoke from touching the food, which means your food won’t absorb as much flavor as possible. Here’s a list of the best Cast Iron Grill Grates.