Alfresco built-in grills are made from commercial-grade 304 stainless steel, and a short cleaning routine is all it takes to keep the AGBQ, ALX2, and ALXE series performing like the day they were installed. This guide covers the exact maintenance steps for burners, briquette trays, cooking grates, and warming racks, using the OEM part numbers Alfresco owners actually order: 510-0005, 510-0094, 510-0522, 510-0677, 12541, and 290-0315.

How Often Should You Clean Your Alfresco Grill?

The cleaning interval is the same across every Alfresco series, from the first-generation AGBQ to the current ALXE: quick cleaning after every cook, parts cleaning every few cooks, and one deep clean per season. Skipping these intervals lets grease bake onto the briquette trays and clog burner ports, which causes uneven flames and hard starts.

Use this schedule for AGBQ (AGBQ-30, AGBQ-30SZ, AGBQ-42, AGBQ-56), ALX2 (ALX2-30, ALX2-36, ALX2-42, ALX2-56), and ALXE (ALXE-30, ALXE-36, ALXE-42, ALXE-56) grills:

How to Clean Alfresco Cooking Grates and Warming Racks

The cooking grates and the 304 stainless warming rack (OEM 290-0315 on ALXE and LX2 30-inch models) take the most direct heat of any Alfresco parts, so residue builds fastest on them.

1. Heat the grill on high for 10 to 15 minutes with the lid closed to loosen stuck-on food.
2. Let the grates cool until warm, not scorching, then scrub with a brass or nylon brush along the bars, not across them.
3. Wipe the warming rack and grate rods with a damp cloth and a little mild dish soap for stubborn spots.
4. Rinse with a clean damp cloth and dry completely to prevent water spotting on stainless steel.
5. Apply a light coat of high-heat cooking oil with a paper towel before your next cook.

Avoid steel wire brushes. Loose bristles can stick to the grates and end up in food. A crumpled ball of heavy-duty aluminum foil held with long tongs works well as a backup scrubber.

How to Clean Briquette Trays and Ceramic Briquettes (510-0005, 510-0094, 510-0522, 510-0677)

Alfresco's heat distribution system sits right above the burner, so it catches most of the grease and drippings. AGBQ grills use the 510-0005 (30-inch) and 510-0094 (42-inch) briquette trays, which lock onto pegs at each end. ALX2 and ALXE grills use the 510-0522 (30/42/56-inch) and 510-0677 (36-inch) trays, which sit on a ledge with lock bars that keep the "A" ceramic briquettes in place.

Standard Cleaning

1. Remove the cooking grates and set them aside.
2. Lift out each briquette tray. AGBQ trays unlock from the end pegs; ALX2 and ALXE trays lift straight off the ledge.
3. Scrape both sides of the tray and the ceramic briquettes with a plastic or wooden scraper to remove carbon flakes.
4. Wash the tray with warm water and mild dish soap using a soft brush or non-scratch pad.
5. Rinse, dry fully, and reinstall with the lock bars (ALX2/ALXE) or pegs (AGBQ) seated the same way they came out.

Using the Self-Cleaning Feature (ALX2 & ALXE Only)

ALX2 and ALXE briquette trays were designed with a self-cleaning shortcut: flip the tray upside down over the burner and run the grill on high for 10 to 15 minutes. The heat burns off grease residue from the ceramic briquettes without a full teardown. This is not a substitute for the deep clean above, but it is a fast way to keep the tray usable between seasonal services.

How to Clean Alfresco Grill Burners (12541)

The cast stainless steel 12541 burner, used across AGBQ, ALX2, and ALXE 30/42/56-inch models, is the most durable part of an Alfresco grill, but its tiny port holes clog with grease ash and rust flakes. Clogged ports show up as weak or patchy flames and uneven heating across the cooking surface.

Burner Cleaning Steps

1. Turn off the gas supply and disconnect the grill before starting.
2. Remove grates and briquette trays to expose the burner.
3. Lift the burner off its mounting and slide it off the gas valve orifice.
4. Brush the exterior with a soft brass brush, working along the burner body.
5. Clear each port hole gently with a wooden toothpick or a wire sized for the hole. Never enlarge the ports with a drill bit.
6. Shake out loose debris through the burner's open end, then inspect the air shutter intake.
7. Reinstall the burner, confirming it seats fully on the orifice before reassembling the parts above it.

Test the grill after reassembly. The burner should light within a few seconds and burn evenly from end to end with a steady blue flame. Yellow-tipped flames usually mean the air shutter needs adjustment or the port is still partially blocked.

How to Maintain the Igniter, Grease Tray, and Exterior

Cleaning the burner and briquette tray is only half the maintenance picture. The ignition system, grease management, and stainless exterior keep the grill starting reliably and looking good. On AGBQ grills the igniter runs on a single AA battery, early ALX2 units use a 9-volt battery with a spark module, later ALX2 units and every ALXE use electronic ignition — check your serial number if you are unsure which system your grill has.

• Igniter: Gently sand or scrape the electrode tip with fine sandpaper until shiny metal shows. Confirm the gap between the electrode and the burner matches your model's spec.
• Grease tray: Pull the drip tray and cup after heavy cooks. Never line it with foil, which can trap moisture against the metal and block airflow.
• Firebox: Vacuum loose ash from the firebox floor once a season with a shop vacuum.
• Exterior: Wash 304 stainless surfaces with warm soapy water, rinse, and dry with the grain. Apply stainless protectant a few times a year, and always use a quality grill cover when the grill is not in use.

Spray-on oven cleaner and chloride-based cleaners damage stainless steel and can void finishes. Warm soapy water is safer and does the job on 304 stainless.

When Should You Replace Alfresco Grill Parts Instead of Cleaning Them?

Cleaning restores performance, but every part has a service life. 304 stainless steel components resist corrosion far better than lower-grade steel, yet years of high-heat cooking, coastal air, and winter storage outdoors eventually take a toll. Inspect every part during your seasonal deep clean and replace anything that fails a basic check.

If the briquette tray and burner are both worn at once, replacing them together restores even heat in one pass. In stock now: the 510-0522 briquette tray with 12541 burner set for ALX2-42 & ALX2-56, the 510-0005 briquette tray for AGBQ-30 & AGBQ-30SZ, the 510-0094 briquette tray for AGBQ-42, and a 290-0315 warming rack for ALXE & LX2 30-inch grills.

Not sure how to identify the right parts for your model first? Read Alfresco Grill Replacement Parts: How to Find the Right Burner, Heat Plate & Igniter, then follow our Alfresco installation guide for AGBQ, ALX2 & ALXE Series to swap parts in under an hour.

Alfresco Grill Maintenance FAQ

Can I use oven cleaner on my Alfresco grill parts?

No. Oven cleaner and other caustic chemicals etch 304 stainless steel and leave permanent discoloration. Remove grates and briquette trays and wash them with warm water and mild dish soap instead. For baked-on carbon, soak parts for an hour in warm soapy water before scrubbing with a non-scratch pad.

How do I use the self-cleaning feature on my ALX2 or ALXE briquette tray?

Flip the briquette tray upside down over the burner and run the grill on high for 10 to 15 minutes. The heat burns off grease residue from the ceramic briquettes. Do this every few cooks, and still perform a full wash-and-dry deep clean once a season.

How do I stop my Alfresco burner from clogging?

Clean the burner ports twice a season with a toothpick, and keep the briquette tray in good condition so grease never drips directly onto the burner. Burning the grill on high for 10 minutes after each cook also vaporizes residue before it builds up inside the ports.

How long do Alfresco grill parts usually last?

With routine cleaning, 304 stainless steel burners often last 3 to 5 years or more, while briquette trays and ceramic briquettes typically need replacement every 1 to 3 seasons depending on cooking frequency. Cooking grates and the warming rack last longest when oiled lightly after each cleaning and kept dry during storage.

The Bottom Line

Ten minutes after each cook and one afternoon each season is all it takes to keep an Alfresco AGBQ, ALX2, or ALXE grill cooking like new. Clean the grates often, the briquette trays regularly, and use the self-cleaning flip on ALX2 and ALXE trays between deep cleans. Replace anything that rusts through rather than fighting it, and choose 304 stainless steel replacements so the parts outlast the grill season after season.