Grill temperature is easiest to manage when you measure heat at grate level (where the food sits), not only at the lid thermometer.
At a glance: At grate level, grill heat runs from low (225–250°F) to incendiary (650°F+). Use the table below to match the zone to what you’re cooking.
Grill Temperature Chart (Quick Reference Table)
| Heat zone | Temperature | Common uses |
|---|---|---|
| Low | 225–250°F | Smoking and true barbecue |
| Medium-low | 275–300°F | True barbecue and indirect grilling |
| Medium | 325–350°F | Direct grilling, indirect grilling, smoke-roasting |
| Medium-high | 375–400°F | Direct/indirect grilling, smoke-roasting, plancha, salt slab |
| High | 450–600°F | Direct grilling |
| Incendiary | 650°F+ | Direct grilling and infrared grilling |
Many grills, such as the 22.5 inch Weber kettle grill, come with thermometers built into the lid, which gives you the approximate temperature at the level of the thermometer probe—essentially 6 to 10 inches above the grate. The temperature at grate level will likely be different.
How to Check Your Grill’s Temperature
Here are some other ways to take your grill’s temperature:
- The point-and-shoot method: Buy a point-and-shoot thermometer. Point the laser beam at one of the bars of the grill grate to get a reading.
- The “Mississippi” method: Hold your hand 3 inches above the grate over the zone where you’ll be grilling. Start counting “one Mississippi, two Mississippi,” etc. You’ll be able to keep your hand over a hot grill for 2 to 3 seconds, over a medium grill for 5 to 6 second, and over a low heat grill for 10 to 12 seconds. Holding your hand over the grate will give you a definite sense of the heat.
- Refueling: With most direct grilling, one chimney of charcoal or wood chunks will last 30 to 60 minutes. For a prolonged direct grill session and indirect grilling, you’ll need to replenish the fire.
- When replenishing lump charcoal, add fresh lumps to the fire and leave the grill open (lid off) for 5 minutes, or until the fresh coals catch fire.
- When replenishing charcoal briquettes, I like to light them separately in a chimney starter, then add them to the fire. (Adding unlit briquettes to a fire often generates an unpleasant acrid smoke.)
With the “Mississippi Method,” gauge the temperature of a fire using the palm of your hand.
The Basic Grill Temperatures and What They’re Used For:
Low Heat (225 to 250 degrees)
Smoking and true barbecue. Use for brisket, ribs, pork shoulder, shoulder clod, whole pigs, lamb, or goats.
Medium-Low Heat (275 to 300 degrees)
True barbecue and indirect grilling. Good for ribs and pork shoulder.
Medium Heat (325 to 350 degrees)
Direct grilling, indirect grilling, smoke-roasting. Good for roasts, pork loin, poultry (whole birds), whole fish, large dense vegetables such as cabbage, onions, or cauliflower.
Medium-High Heat (375 to 400 degrees)
Direct grilling, indirect grilling, smoke-roasting, plancha, and salt slab grilling. Use for chicken pieces, planked fish, large vegetables.
High Heat (450 to 600 degrees)
Direct grilling. Good for steak, chops, fish steaks, pizza, chicken breasts, small or high moisture vegetables or fruit.
Incendiary (650 degrees and higher)
Direct grilling and infrared grilling. Best for searing steaks and chops.
Grill Temperature Zones: Frequently Asked Questions
Why is the lid thermometer different from the temperature at the grate?
Lid thermometers read higher in the cook chamber, while food cooks at grate level. Because heat varies by height and zone, the grate temperature may not match the lid reading.
How do I check grill temperature at grate level?
Use an infrared (point-and-shoot) thermometer aimed at the grate bars, or a probe thermometer clipped at grate level for longer cooks.
Is the “Mississippi method” accurate?
It’s a quick estimate, not a precision measurement. It can help you judge relative heat, but a thermometer is the best choice when you want repeatable results.
How long does a chimney of charcoal usually last?
For many direct-grilling cooks, one chimney typically runs about 30 to 60 minutes, depending on fuel type, weather, and airflow.
What’s the cleanest way to refuel a charcoal fire during a cook?
Add fresh lump and give it a few minutes to catch, or light briquettes in a chimney and add them when ashed over. This helps avoid harsh, acrid smoke.
Use the table as your quick reference. Measure heat at grate level (where the food sits), and your grill gets a lot more predictable.
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