Clean out the burners and venturi tubes. The venturi tubes are the pipes that go out from the burners and connect to the grill control valves. These tubes allow the air and gas to mix together, altering the intensity of the flame. Remove the burners and venturi tubes, and place a hose head at one end of the tube. Turn the water on to clear out any debris or insects that could have gotten inside.
According to Taylor, you'll be able to find this tool in stores, and it's also sold online by Amazon. If you can't wait that long, then use a nylon brush, but make sure to do this only when the grill is cold. Another option is the $15 Sumpri Grill Brush and Scraper. It's made out of stainless steel and is bristle-free, too. While I haven't used it personally, it appears to be popular with Amazon shoppers.
Certain practices can help discourage deposits of dirt and grease from forming in the first place. One method is to grease the grates of your hot grill with a little cooking oil right before your start cooking. In the same vein, scrubbing your grill grates with a raw onion is another tactic you can try. If you do have a grill brush without bristles, it's a good idea to scrape your hot grates both before and after grilling.
With the grates removed, brush down the inside to clear out any loose particles that have collected in the bottom and around the sides. Scrape off any large peeling flakes of carbon and grease and if yours is a charcoal grill, empty the ash catcher. Don’t forget to clean the drip pan and grease cup in warm soapy water and line them with aluminum foil so they’ll be easier to clean next time.
Re-assemble all the parts you removed, taking care to fix the burner tubes back in place in proper position with the cotter pins or screws. Rub cast-iron grill grates with a light coating of vegetable oil. Finally, re-connect your propane tank and fire up the grill; let it heat for at least 15 minutes, then turn it off again. This will help burn off any residues from cleaning, season cast-iron grill grates, and serve as a check that you re-assembled everything properly.
Outdoor grilling is a great way to get together with family and friends and enjoy tasty food. However, the outdoor fun is only possible with a grill that is cleaned and maintained throughout the year. There are a few simple cleaning steps that you can do after every time you grill, along with deeper, semi-annual cleaning steps to keep your grill working its best for years to come. An outdoor grill that is kept clean and maintained will stay in good working order and will ensure that the food you cook on it always tastes great.