Grill Beyond the Grate: The Flat Top Insert | Arteflame

The Quick Take: Why Upgrade to a Carbon Steel Grill Insert?

The Arteflame Grill Insert transforms a standard Weber Kettle or Kamado-style grill into a versatile, wood-fired griddle by replacing the wire grate with a solid carbon steel plancha. This upgrade eliminates flare-ups by preventing fat from dripping onto the coals, creates a restaurant-quality sear across the entire surface of the meat, and allows you to cook small items like vegetables, eggs, and bacon that would otherwise fall through traditional grates. It effectively turns your existing grill into a multi-zone outdoor kitchen without the need for a separate flat-top appliance.

How Does a Carbon Steel Plancha Improve Grilling Results?

Most backyard chefs are accustomed to wire grates, which provide distinct grill marks but often dry out meat due to airflow and flare-ups. A carbon steel insert operates on a different thermal principle. It functions as a heat conductor, absorbing energy from the charcoal or wood below and distributing it evenly across a solid surface.

The Science of Surface Area and Searing

The primary advantage of the Arteflame insert is the maximization of the Maillard reaction. Wire grates only sear the narrow strips where metal touches meat. In contrast, the carbon steel surface sears 100% of the steak, locking in juices and creating a savory crust that wire grates cannot replicate.

Comparison: Wire Grates vs. Arteflame Carbon Steel Insert

See the difference in performance and maintenance between traditional setups and the solid insert.

What Grills Are Compatible with the Insert?

The insert is designed to democratize professional flat-top cooking for owners of popular kettle grills. It is not a standalone unit but an engineering upgrade for the hardware you already own.

Weber Kettle and Kamado Configurations

The insert fits seamlessly into 22-inch and 26-inch Weber Kettle grills, as well as various sizes of the Big Green Egg and Kamado Joe. Because carbon steel is heavy and dense, it adds significant thermal mass to these grills, stabilizing temperature fluctuations that are common in thin-walled kettle grills.

Pro Tip: When using the insert on a kettle grill, remove the center grill grate if you want to add wood chunks while cooking. The open center allows you to feed the fire without lifting the heavy steel plate, maintaining a constant searing temperature.

How Do You Control Temperature Zones?

Unlike a gas griddle which creates a uniform heat, the Arteflame insert creates natural heat zones based on proximity to the fire.

Mastering the Heat Gradient

The center of the insert, closest to the fire pit, allows for temperatures exceeding 600°F—ideal for searing steaks or burgers. As you move toward the outer edge, the temperature drops gradually. This allows you to sear a steak in the center and then move it to the outer ring to finish cooking internally without burning the crust.

• Center Ring: High Heat (Searing steaks, burgers).
• Middle Zone: Medium Heat (Sautéing vegetables, potatoes).
• Outer Edge: Low Heat (Toast buns, keep food warm, cook eggs).

Pro Tip: Use the "oil test" to find your zones. Drop a small amount of oil on different parts of the ring. Where it smokes instantly is your sear zone; where it shimmers gently is your veggie zone. Always use high-smoke-point oils like Avocado or Grapeseed oil to avoid a bitter taste.

Frequently Asked Questions

Does the carbon steel insert rust?

Like cast iron, carbon steel can develop surface rust if not oiled. However, with regular seasoning (applying a thin layer of oil after use), the steel turns black and becomes virtually rust-proof and non-stick.

Can I use charcoal and wood with the insert?

Yes. The insert works excellently with both lump charcoal and wood. Charcoal provides a consistent base heat, while adding wood chunks through the center opening enhances the flavor profile and boosts the temperature for searing.

How do I clean the Arteflame insert?

Cleaning is simple and requires no water or soap. While the grill is still warm, scrape food residue into the center fire using a flat spatula, then wipe the surface with a paper towel and a small amount of oil. This maintains the seasoning.