How to Clean Pit Boss Pellet Grill? All You Need to Know

I have a Pit Boss pellet grill that is about 3 years old.

It has been working great, but it does tend to get dirty after every use. The built-in grease catcher filled up very quickly and was not able to hold all the grease any longer.

When you look into buying one of these units, you can’t help but notice that the “optional” cleaning kit they offer you is more expensive than the grill itself.

But when I look at my old Char-Broil grill, which is about 15 years old, I see that it uses a system that allows me to clean out most of the ashes and grease without opening any fiberglass fiber doors, etc.

So I decided to come up with a cleaning kit for my new grill.

I thought I would share with you on how to clean pit boss pellet grill. Keep in mind that this is just what worked for me and it may or may not work for your grill. You will have to experiment and tweak the design if need be in order to make it work in your own cooker.

For instance, in my BBQ, I removed the rotisserie part of the grill and placed a thin (1/4 inch) sheet of fiberglass board above the flame deflector on my mid-section.

I started out with an old towel, folded over several times until it would fit under the deflector to insert through the empty rotisserie hole. This worked well but it kept slipping out so I redesigned the “brush” to fit around the deflector instead.


– Roll of fiberglass mesh cloth (a roll of 3 inches wide and 50 yards long will be enough for about 5 brushes). You can buy this at Home Depot or Lowes, etc. under the name “fiberglass screen”. It is used to caulk windows and doors, etc.

 – Barbecue basting brush with a wood handle (large size). This holds enough fiberglass wadding for about 6-8 cleanings of my grill, so it’s well worth the price.

– Table knife or any sharp blade.


– Drinking straw (for cleaning out the brush).


Scissors and/or a razor-knife to cut the fiberglass mesh cloth and remove the bristles from the barbecue brush. You can also use a hack saw if you don’t have these tools.


(You have to remove the side panel of your Pit Boss grill in order to do this.)

1 – Take off the ash drawer and you will find a “butt” metal tube sticking out of the bottom. This is where the grease drip through…the hole where all the ashes fall on it ends up being very dirty with oil and grease.

2 – Take some fiberglass screen and cut it into a circle just large enough to fit around the butt tube (make sure you leave enough mesh on each side so that the metal butt is still covered). Fiberglass cloth is very sharp, so be careful not to cut yourself when handling this material…gloves are recommended.

3 – Insert the fiberglass cloth circle over the butt tube and make sure it fits tight around the tube. The bottom of this mesh should be at least 1 inch above where the ashes fall (the mesh will catch most of the grease drip, with only a few ashes falling through). You may need to use a little duct tape or glue to keep the mesh in place. Not too much though, you do not want to clog up the hole.

4 – Using your razor-knife or scissors, cut off all the bristles from your barbecue brush (I used an old basting brush). The more bristles you remove, the easier it is to clean out the built-up ashes. Place the brush over the metal tube where you removed the mesh from and tape it to keep it in place. This way, the brush will fit tight against the grill wall. Tape both sides of the bristles so that they do not move around too much when cleaning with them.

5 – At this point, your new cleaning tool is ready to use. Simply place your grill on a solid surface, turn it on and insert the cleaning brush through the ash drawer area until you feel it resting against the fiberglass screen wadding. You can use a small straw to clean out any built-up gunk from inside the brush. As I said, each time I do this, I can see how much it has cleaned while the grill was heating up.

6 – You can also use a toothbrush to clean out the pits of your smoker after you have removed the meat from them. This way, nothing will be left to burn and ruin your next cooking session. Simply work the brush back and forth in each pit to loosen any grease or food particles. If you are using wood pellets, watch the ashes after shooting the grill (with this setup). I found that many of my ash trays were full of ashes when I looked in them after turning off my grill…there was quite a bit left behind even after cleaning with just a towel. Nothing burns better than food and grease mixed with wood ashes!

Light up your BBQ and start cooking!


1. When you are done grilling, wait until the coals have cooled down before removing the brush from the inside of your BBQ. If you remove it while there are hot coals in your cooker, the handle could catch fire.

2. Place the brush on a table and remove one piece of tape at a time. When you get to the top layer, insert the knife into the center of the bundle and “rake” out all those pesky ashes from your previous BBQ session 🙂

3. Repeat the above steps with the remaining layers of fiberglass.

4. Cut off any excess “hanging” strings and put it all back in the corner of your BBQ.


1. Be extremely careful when you are removing this brush from inside your cooker – always use tongs to do so!!! Unless you like having your hand cauterized by a hot poker.

2. Be careful with the drinking straw – if it is inserted too far, you could lose the ashes and end up blowing more coals than necessary onto your food! Remember, they were smokers before they became BBQers;)


If you are tired of throwing away hundreds of dollars in fuel every year just to have your BBQ grates turn into an ashtray, then this is definitely for you! You will never have to buy a wire brush again.

This tool will keep the paint on your BBQ and it’ll last for years to come! You can easily clean out all of the ashes, leaving you with a perfect surface for searing.


I hope you found this article helpful and don’t forget to checkout some of our other interesting articles. Feel free to visit our website.

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