A clean barbecue doesn't just look the part, it cooks better, heats more evenly and is less likely to deliver surprise flare-ups when you've got a hungry crew waiting for snags. Whether you're firing up for a quick weeknight feed or a weekend cook-up, a little BBQ maintenance goes a long way.
The good news? Cleaning your barbecue is easier than most people think. With a few simple steps and the right routine, you can keep your BBQ performing at its best all year round.
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Why Cleaning Your BBQ Actually Matters
It's tempting to shut the lid and tell yourself you'll deal with the mess later, but you'll be kicking yourself the next time you just want to fire up the barbie for a quick feed.
Regular BBQ cleaning helps to maintain consistent cooking temperatures, improve airflow and burner performance and reduce grease build-up and flare-ups. It can also extend the lifespan of cooking grates and components, prevent old food residue affecting flavour and supports good food safety practices when preparing meals outdoors. In short, a clean BBQ means better-tasting food and fewer headaches.
What You'll Need
Before you get started, grab:
Step-by-Step BBQ Cleaning Guide
Step 1: Heat Things Up First
The easiest grime to remove is warm grime. Turn your BBQ on high for around 10 to 15 minutes with the lid closed. This helps burn off leftover food particles and grease, making them easier to remove from the cooking surface. Once complete, switch off the burners and allow the BBQ to cool until it's safe to handle.
Step 2: Scrub the Cooking Grates
The cooking grates do the heavy lifting, so they're usually where the biggest build-up happens. Using a BBQ brush, scrub both sides of the grates to remove food residue, carbon and grease.
For a deeper clean remove the grates from the BBQ and soak them in warm water and mild detergent. Scrub thoroughly with a non-abrasive brush or sponge, then rinse and allow them to dry completely. If your BBQ has cast iron cooking grates, dry them thoroughly after cleaning and apply a light coating of cooking oil to help prevent rust.
Step 3: Remove Grease and Debris Inside the BBQ
Once the grates are out, it's time to tackle the inside. Using a scraper or brush remove loose food scraps, scrape away built-up grease and brush debris into the grease tray or collection area. Don't stress about getting every surface sparkling clean. A thin layer of carbon inside the cookbox is normal. What you're targeting is excess grease and loose debris that can affect performance.
Step 4: Empty and Clean the Drip Tray
This is the step many BBQ owners forget. Grease trays collect fats, oils and cooking residue over time. If left unattended, they can contribute to flare-ups and unpleasant odours.
Remove the tray carefully and dispose of the contents appropriately. Then, wash with warm soapy water, rinse thoroughly and dry before reinstalling. If your tray liners are replaceable, now's a good time to swap in a fresh one.
Step 5: Check the Burners
If your gas BBQ isn't heating as well as it used to, dirty burners could be the culprit. Regularly clean burner tubes to help maintain strong, even heat and reliable performance. Put a bit of elbow grease into the burner ports and air shutter screens, which can become blocked by debris over time.
For a basic burner check, ensure the gas is turned off, remove cooking grates and heat diffusers if applicable, visually inspect burner holes for blockages, then gently brush across burner ports using a clean brush. Avoid poking sharp objects into burner holes, as this can push debris further inside and affect gas flow.
Step 6: Clean the Lid and Exterior
A clean exterior helps your BBQ stay looking good for longer, especially in Australia's harsh conditions. Using warm water and mild detergent wipe down the lid, clean side shelves, remove fingerprints and grease marks and dry with a microfibre cloth. Avoid abrasive pads or harsh cleaners that could damage painted, enamelled or stainless-steel finishes.
Step 7: Reassemble and Do a Quick Test Run
Once everything is dry, reinstall grates and trays, reconnect gas if required and run the BBQ for a few minutes. Check that the burners ignite properly, the flames are even and airflow is unrestricted. If everything looks good, you're ready for your next cook-up.
How Often Should You Clean Your BBQ?
If you're BBQing multiple times a week, you'll likely need to clean more often.
As a general rule:
After every cook: burn off food residue, brush cooking grates and check grease levels.
Every few weeks: empty and clean grease trays and wipe down internal surfaces.
Every few months: deep clean the entire BBQ, inspect burners and components and check for wear and tear.
If you're not sure whether it's time for a clean, keep an eye out for:
Uneven cooking temperatures
Weak burner flames
Excessive flare-ups
Difficulty reaching cooking temperature
Thick grease build-up
Unpleasant smells when preheating
If any of these sound familiar, your BBQ is probably asking for a bit of attention.
Frequently Asked Questions
Is it safe to use household oven cleaner on a BBQ?
Always check your BBQ manufacturer's recommendations first. Some harsh chemical cleaners can damage BBQ finishes, enamel coatings and cooking surfaces. Mild detergent and BBQ-specific cleaning products are generally the safer option.
Can I wash my BBQ grills in the dishwasher?
Some porcelain-enamelled or stainless-steel cooking grills may be dishwasher safe, but it's always best to check the manufacturer's instructions first. Hand washing is often recommended to help preserve the finish and maximise lifespan.
How do I remove rust from BBQ grills?
Light surface rust can often be removed with a BBQ brush and warm soapy water. Once cleaned, dry the grills thoroughly and apply a light coat of cooking oil. If rust is severe, pitted or flaking, replacement may be the safer option.
How do I stop my BBQ from rusting in coastal conditions?
Salt air, humidity and rain can accelerate corrosion. Keep your BBQ covered when not in use, remove moisture after cleaning, and regularly inspect cooking grates and metal components. Applying a light coat of cooking oil to suitable cooking surfaces can also help reduce surface rust.
Is a BBQ cover enough to keep my barbecue clean?
A cover helps protect your barbecue from the elements, but it won't stop grease, carbon and cooking residue building up inside. Even covered BBQs still need regular cleaning and maintenance.
A clean BBQ is a reliable BBQ. With the grease cleared out, the burners firing properly and the cooking grills ready for action, you'll get better results every time you lift the lid. A little maintenance between cook-ups can save a lot of frustration down the track, leaving you free to focus on the important stuff: good food, good company and getting outdoors.
About the author
BCFing Experts
The BCFing Experts have done more than their fair share of boating, camping, fishing, hiking, four-wheel driving and much much more! Whether you're tackling tough tracks in Tassie or chasing big barra up North, the BCFing Experts have the know-how to make your next outdoor adventure a pearler
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