Why the Charcoal Goes Out in a Kamado (Causes and Solutions)

Why the Charcoal Goes Out in a Kamado (Causes and Solutions)

One of the most frustrating problems for people who are starting out with a Kamado is noticing that the charcoal goes out before the cook is finished.

This can cause:

• loss of temperature
• incomplete cooking
• poor smoke
• difficulty maintaining stability

The good news is that the problem usually has a simple solution.

In most cases, the charcoal goes out due to problems related to:

• airflow
• ash
• the vents
• charcoal quality
• incorrect setup

In this guide you will learn:

• why the charcoal goes out in a kamado
• how to avoid it
• how to improve combustion
• common mistakes you should avoid

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How fire works in a Kamado

The kamado works by controlling:

• oxygen
• airflow
• charcoal combustion

The fire needs enough oxygen to stay stable.

When airflow is reduced too much:

• the charcoal loses strength
• the temperature drops
• the fire can go out completely

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1 — Excess ash

Ash is one of the most common causes.

When too much builds up:

• it blocks the vents
• it prevents air circulation
• it smothers the charcoal

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How to fix it

Before cooking:

• clean out accumulated ash
• check the lower intakes
• verify air passage

Especially important for long smokes.

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2 — Vents too closed

Many beginners close the vents too much trying to control temperature.

The problem is that:

• the charcoal stops receiving enough oxygen
• combustion weakens

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How to fix it

Make small adjustments.

Remember:

the fire needs to breathe

Even in low and slow.

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3 — Poor-quality charcoal

Not all charcoal works the same.

Poor charcoal can:

• go out easily
• produce too much ash
• burn very quickly

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How to fix it

Use premium natural lump charcoal.

Ideally:

• large pieces
• good density
• low ash production

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4 — Too many small fragments

Very small charcoal limits air circulation.

This can create:

• poor combustion
• a weak fire
• going out prematurely

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How to fix it

Use a mix of:

• medium pieces
• large pieces

Avoid an excess of small fragments.

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5 — Poor charcoal distribution

If the charcoal is packed incorrectly:

• oxygen doesn't circulate well
• some areas go out

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How to fix it

Arrange the charcoal leaving spaces for air to circulate.

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6 — Moisture in the charcoal

Damp charcoal can:

• light poorly
• produce more smoke
• go out easily

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How to fix it

Store the charcoal in a dry, protected place.

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7 — Lighting too little

In some cases the problem is the opposite:

• insufficient initial fire
• too little base combustion

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How to fix it

Make sure to build a stable base before closing the vents.

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8 — Excess ash during long cooks

During long smokes, ash keeps building up.

After several hours it can block the airflow.

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How to fix it

For long BBQ:

• periodically check the lower vent
• use premium charcoal with little ash

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9 — Weather and wind

The weather also affects combustion.

Especially:

• strong wind
• humidity
• rain

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How to fix it

Place the kamado in a protected, stable spot.

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10 — Sealing it too early

Some people close the kamado too quickly after lighting.

This can smother the fire before it stabilizes.

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How to fix it

During lighting:

• allow enough airflow
• let stable combustion develop

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How to achieve stable combustion

A good routine usually includes:

1️⃣ clean out the ash
2️⃣ use premium charcoal
3️⃣ arrange the charcoal correctly
4️⃣ light partially
5️⃣ control the vents gradually

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How to tell if the fire is healthy

A stable fire usually produces:

• a constant temperature
• clean smoke
• good charcoal burn time
• uniform combustion

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Common mistakes that make the problem worse

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Closing the vents too much

Very common among beginners.

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Using cheap charcoal

Creates more ash and less stability.

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Ignoring ash cleaning

Greatly affects the airflow.

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Constantly opening the lid

Breaks combustion stability.

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Frequently asked questions

Is it normal for the charcoal to go out?

It shouldn't happen constantly.

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What is the most common cause?

Excess ash and poor air circulation.

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Which charcoal works best?

Premium natural lump charcoal.

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Should the vents be fully open?

It depends on the desired temperature, but you should never completely smother the fire.

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Conclusion

When the charcoal goes out in a kamado, the problem is usually related to:

• airflow
• the vents
• ash
• low-quality charcoal
• incorrect setup

The good news is that with good technique and basic maintenance, the kamado can hold stable combustion for many hours.