What should CO2 for kegerator be set at?

Answered by John Watkins

As an experienced sommelier and brewer, I understand the importance of properly carbonating in a kegerator. The CO2 regulator setting plays a crucial role in achieving the desired carbonation level for different beer styles. Let's dive into the specifics.

First and foremost, it's essential to note that every beer style has its own recommended carbonation level, which contributes to its unique taste and mouthfeel. Carbonation is measured in volumes of CO2, and the range for most beers falls between 2.1 and 2.6 volumes.

To achieve this range, you need to set your CO2 regulator within a certain pressure range. For ales, such as IPAs, stouts, and pale ales, a regulator setting between 7 and 13 psi generally works well. However, it's crucial to consider the temperature at which the beer is being served, as it affects the solubility of CO2. Warmer temperatures require lower pressures, while colder temperatures need higher pressures.

For lagers, which are typically served at colder temperatures, a slightly higher CO2 regulator setting is recommended. Setting the pressure between 10 and 14 psi can help achieve the desired carbonation level for lagers. It's worth noting that some lagers, like German or Czech pilsners, may require even higher pressure settings.

Continental and light pilsners, known for their effervescence and crispness, often benefit from slightly higher CO2 regulator settings. Setting the pressure between 11 and 16 psi can help achieve that characteristic carbonation level, enhancing the overall drinking experience.

When determining the appropriate CO2 regulator setting for your kegerator, it's crucial to consider factors like the desired carbonation level, beer style, serving temperature, and personal preference. It's always a good idea to start with a lower pressure setting and gradually increase until you find the perfect balance.

Additionally, it's important to regularly monitor and adjust the CO2 regulator setting based on the beer's carbonation level. Over time, the carbonation may naturally decrease, requiring adjustments to maintain optimal carbonation.

In my own experiences, I've found that experimenting with different pressure settings and carbonation levels can lead to exciting discoveries. For example, I once brewed an and found that a slightly higher CO2 regulator setting around 12 psi enhanced the hop flavors and aromas, creating a more vibrant and refreshing beer.

To summarize, when setting the CO2 regulator for your kegerator, consider the recommended carbonation levels for the specific beer style. For ales, a pressure range of 7 to 13 psi is generally suitable, while lagers may require slightly higher settings between 10 and 14 psi. Continental and light pilsners benefit from even higher pressure ranges of 11 to 16 psi. Remember to consider the serving temperature and personal preference when fine-tuning the carbonation level. Happy brewing and enjoy your perfectly carbonated beers!