How do you clean a pellet grill after a grease fire?

Let the grill cool completely, then empty the fire pot and hopper of ash and pellets, scrape the drip tray and clean the grates before you start it again. A grease fire leaves a layer of burned residue and loose ash that can choke the next cook or catch again, so the cleanup is about removing fuel and grease, not just wiping the lid.

Cool the grill and empty the fire pot

A grease fire burns hot enough to warp thin metal and leave ash packed into the fire pot. Turn the controller off and leave the lid closed until the grill is cold to the touch. The Best Pellet Grills and Smoke Tubes for Backyard Cooks guide lists the Z GRILLS 7002C with a hopper cleanout, which the maker describes as a way to empty the hopper and swap pellet flavors. After a fire, that cleanout lets you dump the remaining pellets instead of scooping them out by hand.

The Traeger Pro 22 in the same guide has an 18 lb hopper with a clean-out door for fast flavor swaps and storage prep, per the maker. Emptying the hopper removes pellets that may have absorbed smoke and grease during the fire. The LIZZQ Premium Pellet Smoker Tube is listed at 12 inches long and 2.16 inches wide, and its maker states it is made from stainless steel 304 that is easy to clean, so a tube used in the cook can be rinsed and set aside while you work on the grill.

Scrape the drip tray and fire pot

The drip tray catches most of the grease that feeds a fire. Once the grill is cold, lift the grates and slide the tray out. Scrape the burned grease into a metal can and wipe the tray with a cloth. The Napoleon PRO Stainless Steel Smoker Pipe measures 12 inches by 1.75 inches by 1.75 inches, and its maker states that spent wood chips or flavor pellets should cool completely before disposal, which applies to any pellets or chips left in the grill after a fire.

The fire pot itself needs to be emptied of ash. A shop vacuum with a fine dust filter works, or a scoop. Check the auger tube for pellets that have fused or jammed. The Weber Premium Universal Smoker Box is listed at 9.8 inches long, 4.5 inches wide and 2 inches high, and its maker states it is made of durable stainless steel. A smoker box used in the cook can be emptied and washed separately from the grill body.

Clean the grates with a bristle free brush

Grease that drips onto hot grates during a fire bakes into a hard layer. The Best Grill Cleaning Brushes for Grates Without Loose Bristles guide lists the Weetiee Grill Brush and Scraper, which the maker describes as bristle free with a wide scraper and a helix that reaches the sides of grates. The maker states it is safe for gas, charcoal, smoker and porcelain grills. A bristle free brush avoids leaving metal wires on grates that just went through a fire.

The GRILLART Grill Brush is listed at 17 inches by 3.4 inches by 2.8 inches, and its maker states the 18 inch length keeps fingers away from heat and that the brush can be dipped in water and used on hot grates. After a grease fire, clean the grates once the grill is cold, then wipe them with a damp cloth. The maker of the GRILLART brush states that all grill brushes wear out and recommends wiping grates with a damp cloth after cleaning to prevent bristles from being left behind.

Match the brush to the grate and the job

The BBQ-Aid Grill Brush is listed at 17 inches high and 3 inches wide, and its maker states it supports cleaning on hot surfaces up to a maximum of 250 degrees Fahrenheit. That limit matters after a fire: the grates should be cold before you scrub off burned grease, and a brush rated for hot surfaces is not a reason to start cleaning while the grill is still warm. The maker also states the brush is safe for porcelain, ceramic, infrared and other grate types.

The SIMPLETASTE Grill Brush and Scraper has a stainless steel scraper and thick bristles, per the maker, and the maker states the bristles are locked in to prevent shedding. The Nozrix Electric Grill Brush is listed at 12.9 inches long, 4.7 inches wide and 6.5 inches high, and its maker states it has a 300 ml removable water tank with one-touch spray. The maker states the spray and rotating brush soften residue, and that the housing is IPX8 waterproof and can be rinsed. For a grease fire cleanup, a water spray helps loosen burned grease on grates, but the grill still needs to be cold before you use any brush on it.

Reassemble and check before the next cook

Put the clean drip tray and grates back, fill the hopper with fresh pellets and run the grill empty for a short time to burn off any residue the scraper missed. The Z GRILLS 7002C has a view window in the lid, per the maker, so you can watch the pellet supply without lifting the lid during that first run. The Traeger Pro 22 maker states the digital controller holds temperatures from 180 degrees Fahrenheit to 450 degrees Fahrenheit within plus or minus 15 degrees, which gives you a way to confirm the grill is holding a set temperature after a fire.

Check the grease trap and the area under the grill for ash that blew out during the fire. The maker of the Napoleon PRO smoker pipe states that spent chips or pellets should cool completely before disposal, so leave any removed ash and grease in a metal container until it is cold. The Weber smoker box maker states the box fits most sizes of grills, and the box can be emptied and washed as part of the same cleanup. If the fire pot or auger shows damage, the maker’s published features do not cover repair, so contact the maker before the next cook.