What specific cleaning agent is used during the three-month cleaning of a draft beer system?

The use of an acid line cleaning chemical during the three-month cleaning of a draft beer system is essential for effective maintenance. Draft beer lines can accumulate mineral deposits and biofilm due to the presence of water and residual sugars in the beer. Acid cleaners, typically containing phosphoric or nitric acid, are particularly effective at breaking down these deposits. They help dissolve calcium and other mineral build-ups that can impair the flow and quality of the beer.

In contrast, while caustic cleaners are often used for cleaning kitchen and brewing equipment, they are not typically used for draft lines during routine maintenance because they can lead to unintended interactions with residual beer flavors and residues. Detergents can clean surfaces but may not effectively remove mineral deposits or biofilms specific to draft systems. Sanitizers, while crucial for ensuring that equipment is free from harmful microorganisms before and after use, are not designed for the thorough cleaning needed to address scaling and other buildup within the lines.