As an expert sommelier and brewer, I can assure you that kegs do indeed get cleaned. Cleaning is an essential step in the process of maintaining kegs to ensure the quality and taste of the beer or beverage being served.
When a keg is returned to a brewery or a beverage distribution center, it goes through a thorough cleaning and reconditioning process before it can be used again. This is done to ensure that any residual flavors or contaminants from the previous beverage are completely removed.
One common method used to clean kegs is by using a caustic acid solution. This solution helps to break down any remaining beer and remove any stubborn residues or build-up inside the keg. The keg is typically filled with the cleaning solution and allowed to soak for a period of time to ensure thorough cleaning.
After the keg has soaked, it is then rinsed multiple times with water to remove any traces of the cleaning solution. This step is crucial to ensure that no cleaning residue remains, as it can affect the taste and quality of the beer being served.
In addition to cleaning the interior of the keg, the o-rings, which provide a tight seal between the keg components, are also replaced during the cleaning process. This helps to prevent any leaks or contamination when the keg is used again.
It is important to note that the cleaning process is not a one-time occurrence. Kegs are cleaned each time they are returned to the brewery or distribution center, regardless of whether they are visibly dirty or not. This is done to maintain the highest standards of cleanliness and ensure that the beer being served is of the highest quality.
Cleaning kegs is a labor-intensive process, but it is a necessary step in the brewing and serving industry. As a brewer, I have personally been involved in the cleaning process, and I can attest to the importance of maintaining clean kegs for the best beer experience.
To summarize, kegs do get cleaned to remove any residual flavors or contaminants from previous beverages. The cleaning process involves the use of a caustic acid solution, followed by thorough rinsing with water. The o-rings are also replaced during the cleaning process to ensure a tight seal. Cleaning kegs is a regular and essential part of maintaining the quality and taste of the beer being served.