Since the summer is now over and many folks out there would rather not be outside in the cooler weather grilling. Before it gets too cold it’s probably a good idea to do some maintenance on your grill. I live in Florida where the weather isn’t such a big issue on whether or not we can grill, however I will also do some maintenance now since I am not grilling as much as the peak of summer. Plus the cooler weather is a nice reminder (not to mention more comfortable) to get this job done!
First of all, if your grill is on pavement that you would like to keep somewhat clean, you might want to put something down under your grill. I would suggest moving your grill atop of a heavy-duty plastic tarp. This way the grease and gunk won’t get on your nice clean driveway or paving material. Also, for safety reasons (I shouldn’t even have to say this, but…) please do not work on your grill while it is hot or hooked up to the gas bottle. There, I said it.
Tools Needed
Here are a few tools and items that will help you maintain your grill: Grill brush, vegetable cooking spray (like PAM), lava rocks (for gas grill replacement), flat head and Phillips-head screwdriver, pliers and an adjustable wrench (in case of any loose screws, bolts or if you are replacing the grill insides), high-temperature grill paint (if your paint is cracking, fading or chipping), rubber gloves, dish detergent, oven cleaner (or non-toxic grill cleaner), nylon brush, all-purpose cleaner, wire brush, scraper. There are lots of different tools and gadgets out there to help you maintain your barbecue equipment, however I have listed the essentials at the very least.

Cleaning your Gas Grill
It’s not the funnest job in the world to clean your grill, but you’ll be happy you did once you fire it up come springtime (or anytime for that matter!). Okay, so you have your grill on top of the plastic tarp and you are ready to go. Let’s start by disconnecting the gas bottle and putting it in a safe place. Then remove the bottom tray that collects food and charred material. Scrape and dust off the dry stuff and discard. If the bottom tray is greasy, start by spraying off as much as you can with a high pressure nozzle on your hose and set aside. Spray bottom tray with all-purpose cleaner and let sit out of the sun so it doesn’t evaporate quickly. You can spray and soak more if needed.
Next, remove and inspect grill grates. This is the second season for me and my gas grill and I’m noticing some rusting on my grates. Obviously rust does not taste very good and shouldn’t be eaten, so I will discard my grates. Actually I will see if they can be recycled, if so, they will go into my recycle bin. If your grates are in good shape and are just dirty, set them up so they stand up against a wall you won’t mind spraying with cleaner and getting grime on. Hit them with a wire brush first to get the majority of dirt and debris off. Then spray them with all-purpose cleaner and let sit. If this doesn’t do the trick, try oven cleaner (read manufacturer instructions) and rinse thoroughly.
Some gas grills come with lower grates that the lava rocks sit atop of. Simply take those out and hit them with a wire brush. If they are very brittle and falling apart, replace.
Okay. Now we’ve tackled two of the most grimiest areas of your grill. Next, remove the heat diffusers and/or lava rocks from your grill. the heat diffusers can be scraped, brushed and cleaned, but the lava rocks should be replaced if cracking and full of burned food particles.
Innards

Inspect the inner working parts of your gas grill. If the burner assemblies are in good shape and not falling apart, I would just clean off any debris and make sure there isn’t anything obstructing the flow of gas coming out of the burners. If the burners and inner parts of your grill are trashed, I would suggest calling the manufacturer for the parts you need to replace. Some home improvement stores also carry kits to replace burners and other parts.
While “under the hood” check out the inner walls of your grill. Are they dirty or greasy? If so, use your scraper to scrape away the top layer of grime. Then take your nylon brush with some soapy water and wash off the rest of the dirt and grease. You might even want to mask off your burners with tape so you don’t get water in them. After you have cleaned the inside, throw away the dirty water and load up on some fresh soapy water to clean the exterior of your grill. Dry with a clean towel. Once the inside of your grill is dry, spray it with some vegetable cooking spray to keep parts from rusting.
For self-igniting grills, check out the hardware for this to see if it needs replacing. If so, while you are on the phone with the manufacturer, you might as well order a kit to replace as well.

If you have a grill that has cracked, faded or chipping paint, you might want to consider painting the exterior with high-temperature grill paint. First sand off any cracked and chipped areas, clean surface dust with a dry towel and paint away. Be sure to mask off any temperature gauges, handles and anything else you don’t want painted.
After everything is cleaned, rinsed and reassembled, hook up the gas and fire up your grill to make sure everything is in good working order. If so, roll that bad boy into the garage, cover it up, shut off the gas from the bottle and you’ll be enjoying a nice clean grill next season. For those of you who grill in winter as well as summer as I do, keep on enjoying your grill… Now it’s nice and clean and well maintained.
Charcoal Grill/Smoker Maintenance
Fortunately with charcoal grills and smokers, there are no inner parts to replace besides the grates or possibly a tempurature guage or two. That doesn’t mean you are home free because some smokers can get pretty nasty.
Warning! — Safety Alert! — Do not work on a hot charcoal grill or smoker. I don’t care how many beers you had to drink!!! Okay, now that we have that out of the way… Start by putting a plastic tarp underneath your BBQ grill/smoker to save your pavement underneath. Then remove any trays filled with ash. Make sure the ashes are still not hot or glowing. If not, discard.

Remove and inspect grates in your charcoal BBQ or smoker. If they are rusted out, throw them into the recycle bin and order new ones (including the lower grates for putting charcoal atop of). If your grates are in good shape, hit them with the wire brush first, then some soapy water and your nylon brush. For stubborn grime, spray all-purpose cleaner and soak for a while. For even more stubborn grime, try using the oven cleaner (read manufacturer’s instructions) and rinse well once clean.
Take a look at the nuts, bolts and screws of your grill/smoker. If you need to replace any, do so at this time. TIP: Ask the manufacturer if you can be sent a whole kit of nuts, screws and all hardware that comes with your grill/smoker. I had Char-Broil send me a complete set for my double-door smoker so I have extra parts. Comes in handy!
Okay, now that the grates are out of the grill/smoker, get some fresh soapy water and your nylon brush and scrub the inside of your grill (don’t forget the lid or lids and smoke box of your grill/smoker). If your smoker has a smoke stack like mine does, get yourself one of those brushes with a long handle from the dollar store and scrub the inside with soapy water. Change your soapy water and use a clean towel to wash the exterior of your grill/smoker. Take a clean towel with fresh water and wipe inside and outside of your grill and smoke stack.
If your grill or smoker has a temperature gauge or two, check them out to see if they need to be tightened down. Replace if your temperature gauge(s) aren’t working properly.
Once the interior of your grill/smoker is dry, spray with vegetable cooking spray (including the lid or lids as well). Install grates, cover your grill and store for the winter unless you will be using it throghout the winter.
On both gas and charcoal grills and smokers, spray a little WD-40 or 3 in 1 oil to ensure smooth maneuvering.
This post is a little long-winded, but I think I covered just about everything I could think of pertaining to maintaining your grill. It’s a good time of year to do this, so the timing of this post should suit you well (even though this is not one of our favorite jobs). Happy and CLEAN grilling!
Related links:
Search for grill cleaning supplies at Amazon.com!