What happens when CO2 runs out on Kegerator?

Answered by Michael Weatherspoon

When the CO2 runs out in a kegerator, it can be quite a disappointing situation for any enthusiast. This is because the CO2 is crucial for maintaining the carbonation and pressure necessary to dispense beer from the keg. Without CO2, the pressure within the keg will gradually decrease, resulting in a loss of carbonation and eventually making it impossible to pour any more beer.

The first sign that the CO2 is running low is usually when you start to notice a decrease in the carbonation level of the beer. It may become flat and lack the desired effervescence. As the pressure drops, the beer will become less carbonated, and the taste and mouthfeel of the beer will be noticeably affected.

If you continue to dispense beer from the keg after the CO2 has run out, you may be able to get a few more pints out. This is because there is still some residual pressure left in the keg, which can push out the beer. However, once this pressure is fully exhausted, you will no longer be able to pour any more beer.

It's important to note that even if you are able to pour a few more pints without CO2, the beer will not be properly carbonated. It will likely be flat and lack the desired level of carbonation that is expected from draft beer. This can greatly impact the overall drinking experience and may not be enjoyable for those who appreciate the effervescence and mouthfeel that carbonation adds to the beer.

So, what can you do when you run out of CO2 in your kegerator? Here are a few options:

1. Replace the CO2 tank: The most straightforward solution is to simply replace the empty CO2 tank with a new one. This can be done by either purchasing a new tank or having your existing tank refilled or exchanged at a local supplier. It's always a good idea to keep a spare CO2 tank on hand to avoid any interruptions in beer dispensing.

2. Use a hand pump: If you don't have access to a CO2 tank or need a temporary solution, you can use a hand pump to manually pressurize the keg. This involves pumping air into the keg, which creates pressure and allows you to dispense beer. However, it's important to note that using a hand pump can introduce oxygen into the keg, which can negatively affect the beer's flavor and freshness. It's best to use this method as a last resort and consume the beer as soon as possible.

3. Transfer the beer to bottles: If you're unable to replenish the CO2 supply or use a hand pump, you can transfer the remaining beer into bottles or growlers. This will allow you to enjoy the beer without the need for carbonation or pressure. However, keep in mind that the beer will still lack carbonation, and the flavors and mouthfeel may not be as intended.

Running out of CO2 in a kegerator can be disappointing and result in a loss of carbonation and the ability to dispense beer. It's important to monitor your CO2 levels and have a backup plan in place, such as having a spare CO2 tank or alternative methods to pressurize the keg. Ultimately, the goal is to maintain the desired carbonation level and ensure an enjoyable, refreshing beer-drinking experience.