The charcoal grill will not get hot enough

Each cause below lists the signs that point at it rather than at the others. Start with the signs, not with the fix.

1. There is enough charcoal to burn but not enough to reach the temperature wanted.

   common

   Signs it is this one

   • The fire is clearly alight and stable, and the temperature simply plateaus below the target.
   • The coal bed covers a small part of the grate area rather than most of it.

   Why it happens: Chamber temperature is a function of how much fuel is alight at once, not of how long it has been burning. A dozen briquettes will hold a low smoking temperature indefinitely and will never sear, because the heat released per minute is set by the burning mass.

   What to do

   • Add more lit charcoal rather than waiting longer, and spread the bed wider. — during cook, reliable

     Adding UNLIT charcoal to a weak fire usually drops the temperature further before it recovers.

   • Light a full chimney for searing rather than a half one, and judge by the area of the coal bed rather than by the number of briquettes. — next time, reliable

   Next time

   • Decide the target temperature before lighting, and light the fuel mass that matches it.

2. Ash has built up under the fire and is throttling the air supply.

   common

   Signs it is this one

   • The bottom vent is open and the fire is still sluggish, with little visible flame movement.
   • The cooker has been used several times without the ash catcher being emptied.

   Why it happens: A charcoal fire draws air in through the bottom vent and up through the coal bed. Ash accumulating in the bowl covers the vent from the inside, so the vent looks open and almost no air arrives.

   What to do

   • Sweep the ash out through the bottom vent with the cleaning system or a tool, with the lid off and taking care of live embers. — during cook, reliable

   Next time

   • Empty the ash before lighting rather than after cooking.

3. The lid is coming off repeatedly, so the fire never settles.

   occasional

   Signs it is this one

   • The temperature recovers whenever the lid stays on for ten minutes and falls again after each check.
   • The cook involves frequent turning or basting.

   Why it happens: On a lidded charcoal cooker the lid is part of the airflow path: the top vent draws exhaust and pulls air through the fuel. With the lid off, that draw stops and the cooking chamber vents its heat to the sky.

   What to do

   • Batch the interventions: turn once, baste once, and leave the lid alone between them. — during cook, reliable