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The Ultimate Guide: What To Do When Beer Is Not Coming Out of Your Keg

May 27, 2023
The Ultimate Guide: What To Do When Beer Is Not Coming Out of Your Keg

Have you ever looked forward to a refreshing cold beer, only to experience the frustration of beer not coming out of the keg? You're not alone. It's a common issue faced by many beer enthusiasts. But don't worry, we've got your back. In this ultimate guide, we'll walk you through various scenarios that could lead to this problem and provide effective solutions.


Beer is much more than just a beverage. It's a symbol of camaraderie, a staple at gatherings, and for some, a passion. So, when you find yourself dealing with the issue of beer not coming out of your keg, it can be a real party pooper. However, understanding why this issue occurs and how to troubleshoot it can save your day. Let's dive in.

Understanding the Mechanics of a Keg

Before we delve into the solutions, it's helpful to understand how a keg works. A keg system consists of four primary components: the keg, CO2 tank, keg coupler, and beer faucet. The CO2 tank supplies gas into the keg, which applies pressure and pushes the beer up and through the beer line. The beer line then transports the brew to the faucet, from which it pours into your glass. If any part of this system malfunctions, you might find yourself dealing with beer not coming out of the keg.

Why Is Beer Not Coming Out of The Keg?

Several factors could cause beer not to flow from your keg. Let's break down the common problems and solutions.

1. Check the CO2 Gas Pressure

CO2 pressure is crucial in a keg system. It not only carbonates the beer but also pushes it out of the keg. If there's insufficient CO2 pressure, the beer will struggle to make its way up the line and out of the faucet.

Ensure your CO2 tank isn't empty and that the pressure is set correctly. Generally, the regulator should be set between 12-14 psi for most ales and 13-15 psi for lagers. Remember, too much pressure can cause over-carbonation, while too little pressure won't push the beer out.

2. Inspect the Beer Line

Beer lines can get clogged over time, especially if they're not cleaned regularly. Yeast, sediment, and mineral deposits from the beer can build up and restrict the flow.

Clean Your Beer Lines Consistently

If you don't have a SOP in place to clean lines properly here's a great list below

Materials needed

1. Beer line cleaning solution2. Water3. Spanner Wrench4. Cleaning Bucket/Sink in the bar5. Recirculation pump6. Safety goggles and gloves

Step 1: Safety First

Always wear safety goggles and gloves when handling cleaning solutions to protect your eyes and skin.

Step 2: Preparation

Disconnect the keg coupler from the keg. Ensure the beer faucet is in the closed position. Attach keg couplings in the cooler. Take off the faucets on the beer tower and add jumpers.

Step 3: Prepare the Cleaning Solution

Follow the manufacturer's instructions to prepare the beer line cleaning solution in the cleaning pot.

Step 4: Setup the Recirculation Pump

Connect the output of the cleaning bucket to the input of the recirculation pump, and connect the output of the pump to the beer line.

Step 5: Recirculate Cleaning Solution

Turn on the recirculation pump, allowing the cleaning solution to circulate through the beer lines for at least 15 minutes, or as recommended by the cleaning solution manufacturer.

Step 6: Flush with WaterAfter cleaning, disconnect the cleaning solution and connect the pump to a water source. Recirculate clean water through the beer lines to rinse out the cleaning solution. Repeat until the water comes out clear.

Step 7: Reconnect KegOnce the lines are thoroughly flushed and clean, disconnect the recirculation pump. Reconnect the keg to the beer line.

Step 8: Test the FlowPour a small amount of beer to ensure the flow is clear and free of cleaning solution.


Conduct regular maintenance checks on the recirculation pump and replace any worn-out parts as necessary.

Safety Considerations:

Always follow the manufacturer's safety guidelines when using the cleaning solution and the recirculation pump.

Record Keeping:

Maintain a log of each cleaning, noting the date and time of the cleaning, the person responsible, and any observations or issues encountered.

By adhering to this SOP, establishments can ensure their beer lines are properly maintained, leading to better-tasting beer and satisfied customers. Regular cleaning can also extend the lifespan of your equipment and prevent costly repairs or replacements.

3. Evaluate the Keg Coupler

The keg coupler connects the gas and beer lines to your keg. A properly functioning coupler is critical for the flow of beer. If the coupler is faulty or not attached correctly, it can prevent the beer from coming out.

Ensure the coupler is correctly attached and secure. Check the check valve (a small ball that prevents beer from going into the gas line) and make sure it isn't stuck. Also, inspect the seal for any leaks. A damaged coupler may need to be replaced.

4. Examine the Faucet

The beer faucet is the final stop for the beer before it reaches your glass. If the faucet is blocked or faulty, it can prevent the beer from flowing.

If you suspect this is the issue, disassemble the faucet and clean all its components. You can soak the parts in a cleaning solution to remove any yeast or residue buildup. If the faucet is damaged or worn out, consider replacing it.

How to Prevent Beer from Getting Stuck in the Keg

Now that you know the common issues and solutions when dealing with beer not coming out of a keg, let's look at some preventative measures.1. Regular Cleaning: Regular cleaning is the most effective way to prevent most kegging issues. Clean your keg lines, couplers, and faucets regularly to prevent buildups and blockages.2. Proper Storage: Store your kegs at the right temperature to avoid issues like over-carbonation, which can lead to clogs. A temperature of around 38°F is ideal for most beers.3. Pressure Check: Regularly monitor your CO2 pressure. Keeping an extra gas cylinder handy can be a lifesaver if your current one runs out.


In conclusion, while the issue of beer not coming out of your keg can be a dampener, it's often easily solvable. With a bit of regular maintenance and the right knowledge, you can keep your keg system functioning smoothly. We hope this guide empowers you to tackle any beer flow issues with confidence. So, let the good times roll and pour yourself a delicious pint. You've earned it!

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