A grubby BBQ grate does more than look unappealing, since built-up grease and residue can affect food flavour and, on gas models, restrict burner performance over time. This guide covers cleaning both charcoal and gas BBQs properly.
How Do You Clean a BBQ?
To clean a BBQ, let it cool completely, remove the grates and scrub them with a wire brush or soak in warm soapy water, empty out ash or grease trays, wipe down the interior and exterior, and clean gas burners separately with a soft brush. A quick clean after every use, alongside a deeper clean periodically, keeps a BBQ performing and tasting its best.
What You Will Need
- A wire grill brush
- Warm water and washing-up liquid
- Baking soda, for stubborn baked-on residue
- A soft brush, for gas burners
- A cloth for wiping the exterior
- Rubber gloves
How to Clean a Charcoal BBQ: Step by Step
1. Let It Cool Fully
Always wait until the BBQ has cooled completely before cleaning, and make sure charcoal ash is fully extinguished, ideally left overnight, before removing it.
2. Empty the Ash
Remove and dispose of cooled ash, checking your local council’s guidance for disposal, since ash should never go straight into a general bin while there is any chance embers remain warm.
3. Scrub the Grates
Use a wire grill brush to scrub off residue from the cooking grates, or soak them in warm soapy water for stubborn buildup before scrubbing, which softens grease and makes cleaning easier.
4. Clean the Interior
Wipe down the interior bowl and lid with a cloth and warm soapy water, using a baking soda paste on any particularly stubborn baked-on residue.
5. Wipe the Exterior
Clean the outer surfaces with a damp cloth and mild detergent, drying thoroughly to prevent rust forming on metal exteriors.
How to Clean a Gas BBQ: Step by Step
1. Turn Off the Gas
Always turn off the gas supply and disconnect the cylinder before cleaning, both for safety and to allow full access to the burners.
2. Clean the Grates
Scrub the cooking grates with a wire brush, or remove and soak them in warm soapy water for a deeper clean, in the same way as a charcoal BBQ.
3. Clean the Burners
Use a soft brush, such as an old toothbrush, to gently clear any blocked burner ports, since debris here can cause uneven flames or reduced heat output.
4. Empty the Grease Tray
Remove and clean the grease collection tray regularly, since a full or clogged tray is both a fire risk and a common source of unpleasant smells.
5. Wipe the Exterior and Check Hoses
Wipe down external surfaces, and take the opportunity to visually check gas hoses and connections for any signs of wear or damage.
How Often Should You Clean Your BBQ?
A quick brush of the grates after each use, with a more thorough clean at the start and end of the grilling season, keeps most BBQs performing well and free of significant buildup.
If you are planning wider outdoor entertaining upgrades, our guide to patio heaters covers extending outdoor use into cooler evenings.
Frequently Asked Questions
How often should I clean my BBQ grates?
A quick brush after every use, with a deeper soak and scrub every few weeks during regular grilling season, keeps grates free of significant residue buildup.
Can I use a wire brush on a ceramic-coated BBQ grate?
Check your specific manufacturer’s guidance first, since some ceramic-coated grates can be scratched by stiff wire brushes and may need a softer cleaning tool instead.
Why is it important to clean gas burner ports?
Blocked burner ports can cause uneven flames and reduced heat output, affecting cooking performance even if the rest of the BBQ looks clean.
Is it safe to dispose of BBQ ash straight into the bin?
Only once fully cooled, ideally left overnight, since embers can remain hot within an ash bed longer than they appear from the surface.
Should I clean my BBQ before or after storing it for winter?
Both. A thorough clean before winter storage prevents residue hardening over the off-season, and a check-over clean before the first use of the new season is worth doing as well.
Always ensure gas is fully turned off before cleaning a gas BBQ, and check charcoal ash is completely cool before handling or disposing of it.
About the Author
Spire Homes Editorial Team researches and writes practical, UK focused home improvement guides covering renovation planning, financing, interior design, and outdoor living. Our content is reviewed for accuracy and updated as guidance changes.

