As an expert sommelier and brewer, I can assure you that the lifespan of a refrigerated keg of beer can vary depending on several factors. However, I will provide you with a general guideline based on my knowledge and experience in the industry.
First and foremost, it is crucial to dispense keg beer with the appropriate equipment and techniques to ensure its freshness. When using CO2 to dispense the beer while maintaining the proper temperature and pressure, you can expect the beer to remain fresh for a certain period of time.
For non-pasteurized draft beer, the average lifespan is around 45-60 days. This means that if you store and dispense the beer correctly, it should maintain its optimal flavor and quality for up to two months. However, it is essential to note that this is an estimate and can vary depending on the specific beer and brewery.
On the other hand, pasteurized draft beer tends to have a longer shelf life. Pasteurization is a process that involves heating the beer to eliminate bacteria and extend its lifespan. As a result, pasteurized draft beer can last for about 90-120 days when stored and dispensed correctly. This extended lifespan is due to the added protection against spoilage provided by the pasteurization process.
It is important to emphasize that these time frames are general guidelines and not set in stone. The freshness of the beer can also be influenced by other factors such as the specific beer style, its alcohol content, and the conditions in which it is stored.
Furthermore, it is essential to mention the impact of using a party pump (air) to dispense keg beer. When using a party pump, the beer is exposed to air, which can lead to oxidation and spoilage. As a result, the beer will only remain fresh for a very short period, typically no more than 8-12 hours. This is why it is crucial to avoid using party pumps for extended periods and instead opt for CO2-based dispensing methods whenever possible.
The lifespan of a refrigerated keg of beer can vary depending on factors such as pasteurization, beer style, and storage conditions. Non-pasteurized draft beer can last around 45-60 days, while pasteurized draft beer can last approximately 90-120 days. However, it is crucial to dispense keg beer with CO2 and maintain the proper temperature and pressure to ensure its freshness. Using a party pump (air) will significantly reduce the lifespan of the beer, limiting it to no more than 8-12 hours.