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Temperature Controls in Different Charcoal Grills
Before you learn how to regulate heat on a charcoal grill, you need to understand the temperature controls. Different charcoal grill types have different combinations of heat control systems and air intakes, as listed below.
Airflow for Temperature Control and Cooking
The airflow is generally the same for each type of charcoal grill discussed in this guide. The vents are used to help control the temperature within the grills.
Each charcoal grill has intake vents. These intake vents, usually located on the bottom of the grill, allow oxygen in to fuel the fire. Air enters through the bottom vents, flows over the coals and food, and exits through the top vents. For proper airflow, keep the vents open. Adjusting the vents changes the temperature. The more you open the vents, the more incoming air and oxygen you allow into the grill to feed the fire. More oxygen creates a hotter fire.
Ensure you wear heat-resistant gloves and use tongs to prevent accidents when working at a hot grill.
1. Cart Charcoal Grill
- Some cart charcoal grills have an adjustable fire grill grate to maintain the airflow within the grill by increasing or decreasing the distance between the coals and the cooking grate.
- Some models have a built-in thermometer that lets you monitor the grill’s temperature.
- A charcoal door on some models lets you easily load the fuel inside the grill.
Charcoal Placement and How It Affects Cooking
- To roast or smoke foods, use indirect heat by setting up the coals on one side of the grill and cooking on the other, or splitting the coals into two zones (one for the hot zone, one for the cool zone).
- For high-heat grilling for burgers, steaks, etc., spread the charcoal evenly across the bottom of the grill.
- With more charcoal, you can generate higher temperatures and maintain longer cooking time. Less charcoal gives you lower heat, which is better for delicate foods or shorter cook durations.
When pushing around lit coals, always use long-handled tongs or a metal spatula to prevent injury.
2. Barrel Charcoal Grill
- A barrel charcoal grill has a side damper and dual damper controls to regulate the airflow and temperature.
- A temperature gauge on some models lets you monitor the barrel charcoal grill temperature.
Charcoal Placement and How It Affects Cooking
- To roast or smoke foods, use indirect heat by pushing coals to one side of the grill, or split the coals into two zones (one hot, one cold).
- For high-heat grilling for burgers, steaks, etc., spread the charcoal evenly across the bottom of the grill.
- With more charcoal, you get higher heat and longer cooking time. Less charcoal gives you lower heat, which is better for delicate foods or short cooks. For better flavor, use less charcoal and add wood chunks to create more smoke.
3. Kettle Charcoal Grill
- Many kettle charcoal grills have a built-in thermometer to track the grill temperature.
- Adjustable air vents control the airflow within the grill.
Charcoal Placement and How It Affects Cooking
- Create a center pile of charcoal for even heat. This method is good for foods like whole chickens because it focuses heat in the middle while keeping the outer edges of the grill cooler. That balance between both direct and indirect heat locks in juices and makes slow-roasted foods delicious and gives them a smoky flavor every time.
- For indirect heat, place the charcoal to one side of the grill. This works best for slow cooking.
- The amount of charcoal used directly impacts the grill’s temperature. For low heat, use a quarter chimney or one-quarter of a charcoal chimney starter filled with charcoal. For medium heat, use a half chimney, or fill the starter halfway with charcoal. For high heat, fill the charcoal chimney starter completely with charcoal. For more precise control, use a charcoal grate divider or baskets.
4. Kamado Charcoal Grill
- Kamado models of charcoal grills feature an air vent for controlling the inside temperature.
- They have an Advanced Multi-Panel (AMP) firebox that’s designed for better heat retention, more consistent cooking and improved circulation to create perfectly cooked meals.
- Kamados are designed to trap heat and moisture; therefore, the lid should always remain closed during grilling to prevent heat loss and spiking temperatures.
- Kamados are very efficient. They can keep their temperature constant for hours on minimal fuel. They’re very responsive to small vent changes.
Charcoal Placement and How It Affects Cooking
- For indirect cooking, place the charcoal to one side. For even heat, mound the charcoal in the center.
- For even heat distribution, place the charcoal in a basket.
- For quick cooks or sears, use a small amount of charcoal. For longer cooks, fill the firebox.
- For better airflow and less ash, use natural lump charcoal.
- When smoking, add wood chunks to the charcoal.
How to Regulate Heat on a Charcoal Grill
Regulating heat requires more than just increasing the heat or cooling down the grill, depending on the dish you’re cooking. Here are some simple steps explaining how to regulate charcoal grill temperature. Use these as a guide only. Follow the manufacturer’s instructions for your grill.
Be careful when using a grill. Wear heat-resistant gloves and safety glasses when adjusting the grill or dumping lit charcoal.
Step 1: Select Good Quality Charcoal
While working with a charcoal grill, you must
choose between lump charcoal or charcoal briquettes. Hardwood lump charcoal can
help start the grill quickly. Charcoal briquettes have a uniform size, so they
burn consistently for a longer time.
Step 2: Light the Charcoal Grill and Increase the Heat
Use a match, a lighter or an electric starter to
light the charcoal.
If you’re using standard charcoal that’s not
treated with lighter fluid, you can increase the heat by using tongs to place
some unlit coals on top of the burning coals. Don’t attempt this with treated
charcoal. Here are some more ways to increase the charcoal grill temperature:
- Use a chimney starter: You can also use a chimney starter to increase the heat inside the grill.
- Adjust air vents: In charcoal grills with air vents or dampers, you can increase the temperature with the help of exhaust vents. First, open the intake vents completely to draw more oxygen inside the grill. This will allow the coals to burn hotter.
- Now use tongs to open the exhaust vent fully and heat up the grill. If you want medium heat, adjust the exhaust vents to a half-open position. The right amount of vent opening depends on how smoky you want the food to be.
When the grill has reached the desired
temperature, remember to close the intake vents a bit. If you leave them
completely open while cooking, the coals can get too hot and burn your food.
Create cooking zones: Create two cooking zones in a cart charcoal grill and a barrel charcoal grill. Use tongs to move all the burning charcoal on one side to get a high-temperature zone. Use this cooking zone for searing. The other side can be used for indirect cooking.
Step 3: Maintain the Heat
Place a pan of water inside the grill before
cooking to prevent sudden heat spikes.
On some grills, you can monitor the inside
temperature with the help of a built-in thermometer.
Step 4: Cool the Charcoal Grill
If you want to reduce the heat at some point during the cooking process, close the exhaust vents. Reduced oxygen flow will help lower the temperature inside the grill.
Don’t close the vents completely while cooking. If there is no oxygen flow, the fire will go out.
Step 5: Close the Charcoal Grill
After cooking, close the charcoal grill lid and vents completely. This will reduce the oxygen supply and help extinguish the charcoal. Once the charcoal is completely extinguished, let the grill cool down completely and dispose of the ashes and remaining charcoal properly.
A Difference You Can Taste
Regulating the temperature is key to preparing
great food on your charcoal grill. Burgers, steaks, whole chickens, ribs, chops
and everything else you grill will be grilled to perfection. Air intake vents
play an important role in controlling the temperature of the grill. Charcoal
placement also impacts the food’s flavor. Arranging the coals in different
patterns creates varying heat zones, each developing a distinct flavor
profile.
Ready to grill? Once you start following these
temperature and charcoal practices, you’ll begin to taste the difference.
Whether you want to stock up on charcoal, upgrade from your old charcoal grill
or treat yourself to new grilling tools, we’ve got you covered. Stop by your
local Lowe’s and pick up everything you need to keep the grill going.