KAMaster 18.25-inch Cast Iron Grill Grate for Large Big Green Egg — Reversible Searing, Heavy-Duty

KAMaster’s 18.25-inch cast iron cooking grate is a heavy-duty, reversible searing grate designed to fit most 18" kamado-style grills for superior heat retention and signature grill marks.

Made from dense cast iron and sized for large kamado cookers such as the Big Green Egg (Large) and compatible Vision models, this round grate is built for high-heat searing and long-lasting performance. The reversible design gives you a choice between narrow and wide ridges, letting you switch from aggressive steak sears to gentler marks for fish or vegetables. It’s a straightforward replacement or upgrade for anyone who wants a more consistent, restaurant-style sear from their backyard smoker or grill.

How does this grate improve searing and flavor?

The thick cast iron stores and delivers even heat, so a steak gets an immediate, high-temperature contact that creates a deep, caramelized crust. Compared with thin wire grates, it holds temperature during lid openings and transfers more surface heat into food which enhances crust formation and caramelization. The reversible ribs let you choose a closer contact or wider spacing based on the food you’re cooking.

• Dense cast iron construction for steady, even heat
• Reversible design: narrow ribs for steaks, wider ribs for delicate items
• Better retention of seasoning and smoke flavors on the cooking surface
• Thicker profile reduces temperature drop when the lid is opened

Will this grate fit my Big Green Egg or other kamado?

The grate measures approximately 18.25 inches in diameter, intended for kamado barbecue zones that match that cooking-ring size rather than the outer shell measurement. It fits many large kamado models including the Large Big Green Egg and several Vision grills, but you should confirm your grill’s actual cooking-ring diameter before ordering.

• Diameter: ~18.25 inches (fits many large kamado cooking rings)
• Made to replace or serve as a primary cooking surface
• Not sized to the outside body — measure the grill’s cooking area
• Check manufacturer specs of your kamado for best compatibility

How do I prevent rust and maintain the cast iron grate?

Cast iron performs best when kept clean and lightly oiled. After each cook scrape away residue while the grate is still warm, then season it with a thin coat of cooking oil. For longer storage, apply a heavier oil layer and keep the grate protected from moisture and condensation to slow oxidation.

• Scrape grates after each use while warm
• Brush on a light coat of oil to maintain seasoning
• Leave dampers slightly open to avoid condensation buildup
• Cover grill or store coated grate indoors for long-term storage

What cooking styles and foods is this grate best for?

This grate is ideal for direct high-heat cooking—quick sears, steaks, burger crusts, and thicker chops—but the reversible surface also accommodates more delicate proteins and vegetables. Use the narrow side for pronounced grill marks and the wider side to reduce sticking and make cleanup easier for flaky fish or asparagus.

• Perfect for steak and other high-heat searing tasks
• Works well for fish and vegetables on the wider-rib side
• Holds seasoning to build a naturally nonstick surface over time
• Durable enough to be a long-term primary cooking surface

Who is this product for? Grillers who want restaurant-style sears and long-lasting durability will appreciate the KAMaster 18.25" cast iron grate. It’s best for owners of large kamado-style grills who need a heavy, heat-holding cooking surface that produces clear grill marks and improves crust formation. If you regularly sear steaks, cook thicker cuts, or want a more substantial grate than thin wire, this cast iron option is well suited to backyard chefs and weekend pitmasters who care about heat retention and a reliable cooking surface.