To properly clean a keg, it is important to use a powerful keg sanitizer. This will help ensure that any bacteria or contaminants are effectively eliminated, leaving your keg clean and ready for use. While there are several options available on the market, I highly recommend using a quality brewery keg sanitizer for optimal results.
One popular choice among brewers is a sanitizer called Star San. This sanitizer is widely used in the brewing industry and is known for its effectiveness in killing bacteria and other microorganisms. It is an acid-based sanitizer that is safe to use on stainless steel, which is the most common material used for kegs.
When using Star San or any other keg sanitizer, it is important to follow the manufacturer's instructions for proper dilution and contact time. Typically, a solution of Star San is made by mixing it with water, and the keg is then filled with the solution and allowed to sit for a certain period of time to ensure thorough sanitization. After the contact time is complete, the keg should be thoroughly rinsed with clean water to remove any residual sanitizer.
In addition to using a keg sanitizer, it is also recommended to clean your kegs regularly, especially if they have been stored empty for an extended period of time. Even if a keg appears clean on the outside, there may be residual buildup or contaminants inside that could affect the quality of your beer.
To clean your kegs, you can start by disassembling any removable parts, such as the keg lid, dip tube, and o-rings. These parts can be soaked in a cleaning solution, such as a brewery-specific cleaner or a mixture of hot water and a mild detergent. Scrubbing them gently with a soft brush can help remove any stubborn residue.
For the keg itself, you can use a keg cleaning brush or a soft cloth to scrub the interior surfaces, paying special attention to any areas that may have buildup or residue. Rinse the keg thoroughly with clean water to remove any cleaning solution or debris.
Once all the parts and the keg itself have been cleaned, it is important to sanitize them before using the keg again. This is where the keg sanitizer comes into play. By following the instructions provided with the sanitizer, you can ensure that your keg is properly sanitized and ready for use.
In summary, to clean a keg, it is important to use a powerful keg sanitizer, such as Star San, and follow the manufacturer's instructions for dilution and contact time. Regular cleaning and sanitizing of kegs will help maintain their quality and ensure that your beer is not negatively affected by any contaminants or buildup.