How to Clean Your Kegerator (Because Beer Deserves a Clean Home)

How to Clean Kegerator Beer Lines

The cleaning of your home draft system is paramount to maintaining a flow of clean and healthy beer. Without this regular maintenance between each keg, one runs a high risk of microbial infection that could change the flavors of the beer. Here we will go over the various details of disassembling a kegerator for the regular maintenance it needs. If you own a home draft system, we recommend that you follow these steps to insure proper cleaning and sanitation.

Cleaning Your Home Draft System
Regular cleaning and sanitation of your home draft system lines, faucets and regulators is essential for keeping your beer flowing bacteria-free.

There are two stages to the cleaning of your home draft system: cleaning and sanitizing. Cleaning means getting all the large chunks of yeast and malt residue away from the surfaces of the beer line, while sanitizing means going after the microbes and performing a deeper clean.

Here are the basic steps to follow to clean your kegerator at home.

Step 1 - Turn Off and Unplug
The first thing you want to do is make sure your kegerator is unplugged from electricity. So go ahead and unplug your kegerator, turn the CO2 tank off, close off the regulator, and disengage the keg tap and remove the keg.

Step 2 - Clean Inside and Outside
Start cleaning all interior surfaces of the kegerator - this includes your CO2 tank, regulator, keg tap, all beer lines, any drip tray collection bottles you have, the inside of your cooling unit, and the outside. Basically, it is a good idea to give the whole area around your draft system a good cleaning. This is because microbes such as vinegar bacteria, rouge yeast, or colonies containing both (i.e. Kombucha) can live in sticky puddles of spilled beer and find their way into your beer faucet and cause contamination.

We suggest using unscented soap and warm water for this initial surface cleaning. The use of unscented soap allows you to smell if the surface is actually clean or not, as the perfumes in scented soaps can be strong enough to overpower scents that are clues to dirty spots.

Step 3 - Flush Beer Lines with Cleaner

Once you have cleaned all the exterior surfaces you can reach, you will want to clean the interior surfaces you can't reach. This is the inside of the beer lines, the beer faucet, draft tower, and the keg coupler. Using a gravity fed cleaning kit or a recirculating pump, you can flush Beer Line Cleaner through the lines to clean all the liquid side beer line components.

Make sure you have the following tools available before disassembly:
1. Quart Bottle with pump assembly
2. Faucet Wrench
3. Faucet Brush
4. Cleaning Solution (BLC is a good one)
5. A 2-5 gallon bucket
6. A small bowl

Step 5 - Clean Faucets and Couplers
You will want to disassemble the faucet by unscrewing it to the right with the faucet wrench. The faucet wrench is a specialty wrench that should have come with your kegerator for this purpose - also called a spanner wrench.

Home Draft System Cleaning Tools

When deep cleaning your kegerator it is suggested to remove the draft tower elbow shank(s) and soak them along with your faucet parts. To do this you will need to remove the beer tower faucet shank nut. (Video below.)

Completely disassemble the faucet once you remove it from the draft system. (Below you will see a perlick style faucet disassembled on the left and a regular style faucet on the right. )

Perlick Faucet Parts
Standard Faucet Parts

Let the various parts soak in a mixture of cleaning solution and hot water in the bowl for 10-15 minutes.

Soak Faucet Parts

While that is soaking, connect the quart bottle with the pump assembly to your faucet shank coupler. You can use the faucet wrench to get a snug fit, but don't forget the washer that is supposed to go in between the cleaning hose adapter and the faucet shank. Just like on your garden hose, if you forget this, the joint will leak a lot.

cleaning bottle

Most cleaning solutions are concentrated, so you will not have to put much in the quart bottle - usually just a cap full or teaspoon full. You could also use a homebrew keg instead of the quart bottle that comes with most cleaning kits and use CO2 to flush the cleaner through the lines. Another option is to use a submerged recirculation pump to clean multiple kegerator lines all at the same time.

The keg coupler (commercial kegs) or quick disconnects (homebrew kegs) should also be disassembled and set to soak in the bowl while you are cleaning the beer lines. Be careful to remember how the tap comes apart and to not lose any parts. You will have to put it all back together.

Below is a sanke tap modified with a threaded fitting to easily switch back and forth between sanke and homebrew style couplers.

Sanke coupler parts

Below is a look at a dissasembled homebrew style fitting.

homebrew tap parts

After removing the keg coupler, the other end of the beer line goes into your bucket, which should be at least two gallons and no more than five, ideally. It is worth noting here that you should NOT use bleach for this process. Bleach reacts poorly with stainless steel, and there are probably some stainless steel parts in your draft system. This is why oxidizing cleaners are preferred, such as BLC or Oxyclean. A solution of water and Iodine will work as well.

Scrub faucet parts

After the beer lines have been cleaned and sanitized, use the faucet brush to scrub out the faucet and keg tap. Once these are cleaned, you should inspect all of the parts, especially the rubber gaskets and O-rings. These are the parts of the draft system which most often fail. If they are worn or flattened, you should replace them as soon as you are able. If the gasket is in a location where threads are present, you may be able to use with thread tape, but you will want to replace the gasket eventually.

Step 6 - Reassemble

Now you are ready for reassembly and possibly for a beer if you have another keg on hand. Put the faucets back together in the reverse order they were taken apart and attach back to the beer tower or shank. Tighten down any clamps that were taken off. Buy a new fresh keg of beer and remember to let the keg settle and get to temperature before drawing beer from it.

Related Kegerator Articles :
Cleaning Your Kegerator -- Learn why cleaning your kegerator is vital to keeping beer tasting fresh and efficiently flowing.
Maintaining Beer Lines With A Beer Cleaner -- Learn how to maintain your kegerator beer lines with a beer cleaner like iodophor, BLC or Power Punch 22.
Kegerator Maintenance Tools -- See the kegerator tools you need to keep your kegerator sanitized and clean to keep beer flowing properly.