Why Line Cleaning Matters*

Clean beer lines are integral to maintaining the quality of craft beer

Small and independent craft brewers devote a lot of time, effort and resources to make the best possible beer for consumers. Ingredients are handpicked, the latest technological advances in brewing are used and batches of beer are tested throughout the process to ensure superior quality. That hard work can be ruined in the time it takes the beer to travel from the keg to the glass if the draught system/lines have not been properly cleaned and maintained.

The enemies of draught beer may include the following:

Yeast

White or grey-colored surface growth found on beer system components (faucets, keg couplers and drains) that are exposed to air.

Mold

Brown or black-colored surface growth found on beer system components (faucets, keg couplers and drains) that are exposed.

Beer stone

Grey or brown in color, (calcium oxalate) builds up and eventually flakes off if the system is not properly maintained, potentially ending up in the pint and having a negative effect on taste.

Bacteria

Beer-spoiling bacteria will ruin a beer’s flavor and aroma. While these micro-organisms are not health risks, they will cause buttery off-flavors called diacetyl, or sour, vinegary off-flavors called acetic acid.

All of these enemies of beer are easily preventable by regular line cleaning, but if left unattended will inevitably lead to off flavors and unsatisfying beer drinking experiences.

*  all info on this page provided by the Brewers Association