By Bill Ohaire | Published: April 2026 | Last Updated: April 2026

Outdoor BBQ cooking in the backyard

Photo by Canary Vista ES on Pexels

Quick Answer

A slow-to-heat charcoal BBQ is usually caused by poor airflow, damp charcoal, not enough charcoal, or trying to light without a chimney starter. Use a chimney starter — the most reliable way to light charcoal.

Why This Happens

A slow-to-heat charcoal BBQ is usually caused by poor airflow, damp charcoal, not enough charcoal, or trying to light without a chimney starter. Old ash in the bottom also blocks airflow.

How to Fix It

  1. Use a chimney starter — the most reliable way to light charcoal
  2. Clean out old ash before every cook — it blocks the bottom vents
  3. Open all vents fully until the desired temperature is reached
  4. Use quality lump charcoal or briquettes — cheap charcoal is often damp
  5. Store charcoal in a dry place
  6. Use enough charcoal — a full chimney starter for high heat cooks
  7. Wait 15-20 minutes after lighting before adding food — coals should be ashed over (grey)

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Frequently Asked Questions

Charcoal BBQ Slow to Heat?

A slow-to-heat charcoal BBQ is usually caused by poor airflow, damp charcoal, not enough charcoal, or trying to light without a chimney starter. Old ash in the bottom also blocks airflow.

How do I fix this?

Use a chimney starter — the most reliable way to light charcoal. Clean out old ash before every cook — it blocks the bottom vents. Open all vents fully until the desired temperature is reached.

Related BBQ Guides

Sources & References

1
Guga Foods (YouTube)
Premium beef experiments — dry ageing, wagyu, and creative steak techniques.
Video
2
Serious Eats
Kenji Lopez-Alt's food science approach to grilling the perfect steak.
Reference
3
Weber Grill Skills
Australia's most popular grill brand — guides for every cut and cooking method.
Manufacturer
4
AmazingRibs.com
The science of BBQ — temperature guides, techniques, and recipes backed by food science.
Reference