Two-Zone BBQ Setup: Arrange Direct and Indirect Zones

A two-zone setup gives you an area for direct heat and another for indirect cooking on the same barbecue. You can move food when it browns too quickly and let it cook through gently before finishing the surface. This guide explains the practical setup. To choose a cooking method, see the separate direct versus indirect heat guide.

What is a two-zone setup?

In a classic two-zone arrangement, the active heat source sits under part of the grate. Grill directly above that source and cook indirectly over the shielded or unheated part. Both areas remain available during the same cook.

  • Direct zone: for controlled browning or grilling over the heat source.
  • Indirect zone: for reducing direct surface heating and cooking food through more gently.

The indirect zone is not cold or burn-proof. The grate, air and walls remain hot. The zones do not have fixed temperatures of 200–300 °C and 120–160 °C: their behaviour depends on the appliance, fuel, airflow and settings.

Kettle barbecue: coals on one side

  1. Check the manual. Use suitable fuel and keep air vents and grease collection systems clean. Set up outdoors in a suitable, stable location.
  2. Create a direct side and an indirect side. Arrange hot coals on one side of the charcoal grate, using suitable charcoal baskets if appropriate. Leave the area under the other part free of coals. Adjust the quantity to your appliance and recipe.
  3. Add a drip tray if needed. A suitable tray beneath the food can collect fat. Adding water is a separate choice according to recipe and appliance; it is not essential to two-zone cooking and does not guarantee juicy meat. Do not block vents.
  4. Let the grill stabilise. Fit the cooking grate and use the lid and vents as instructed. On many kettles the top vent can be positioned above the indirect side; the design determines what is possible.
  5. Measure near the food. Use a suitable probe close to the food, not touching the grate or meat. A lid thermometer does not necessarily describe the temperature there.

Coals on two opposite sides with food in the middle also provide indirect cooking, but this is not the same left-to-right arrangement. What matters is which areas you can actually use during cooking.

Gas barbecue: not every burner needs to be high

  1. Light and preheat the grill according to its manual.
  2. Leave one or more burners on and switch off the burner beneath the indirect cooking area, where the appliance supports this arrangement.
  3. Set the active burner to the required heat. Low or medium may be sufficient; turning every active burner to high is not a general rule.
  4. Place food above the unlit section for indirect cooking. Keep a suitable direct area available if you want to brown it later.
  5. Use the lid as instructed and check that the temperature near the food is stable enough. Leave room for air circulation.

On a two-burner grill, switching one burner off can be a useful starting point. More burners allow other arrangements. Burner direction and length determine where the indirect area actually is.

Kamado: suitable deflectors and grate levels

A kamado's round shape does not make two-zone cooking impossible. Whether simultaneous direct and indirect areas are practical depends on cooking space and the compatible accessory system.

A suitable half deflector can shield one section while leaving another direct. A full deflector generally creates an indirect setup without automatically providing a usable direct grilling area alongside it. Different grate heights can also affect heat exposure.

Use only arrangements and accessories suitable for your model. Maintain the specified airflow. Plan the setup before lighting: moving hot deflectors during cooking is not essential and risks burns.

More about kamado temperature control

Using the zones during cooking

Cook gently, then brown briefly

A thick steak can cook indirectly first and then finish directly. Allow for the extra heat added during searing and carry-over cooking. There is no rule that every cut must move to the direct zone exactly 5 °C below the desired final temperature. Thickness, searing intensity and resting time change the outcome.

The reverse-sear method step by step

Chicken, sausages and fish

Bone-in chicken and thicker sausages can cook indirectly and finish directly if desired. This offers control but does not guarantee crisp skin or an unbroken sausage casing. Fish can cook directly or indirectly depending on species, thickness and recipe.

For safe doneness, use a clean food thermometer and guidance appropriate to the food and preparation. Colour, grill marks and a fixed cooking time are not substitutes.

Food is browning too quickly

Move it to the indirect area, check the heat setting and assess progress. This zone may still be very hot. Turn food if necessary and keep checking: moving it indirectly does not automatically fix an overheated cook.

Troubleshooting common problems

  • Both sides are too hot: reconsider the fuel quantity or burner setting and follow the manual's temperature controls. An unlit burner below the food does not guarantee a low air temperature.
  • The direct side browns too slowly: check that the heat source and grate are ready and the distance is appropriate. Adding fuel is not the right solution for every appliance.
  • One side of the food cooks faster: the transition between zones is not a hard boundary. Turn or move food and measure in a representative position.
  • Fat flares briefly: move food out of the flames if safe. Keep grease collection clean and limit excess oil.

A sustained grease fire is not a normal grilling step. Do not use water on burning grease; follow your appliance's emergency instructions and keep away from danger. In an immediate emergency, get people to safety and call 112. See the heat guide for the distinction between brief flare-ups and a grease fire.

Two-zone and indirect cooking are not the same

Indirect cooking describes the food's position relative to the heat source. A two-zone setup describes a direct and an indirect area that can be used at the same time. A full deflector alone can provide indirect cooking without a second direct area.

You do not have to move a dish through both zones. Cooking entirely indirectly may be appropriate. The extra zone gives options, not a mandatory sequence or guaranteed result.

Further reading