How Often Should You Clean Draft Beer Lines?

The industry standard, backed by the Brewers Association, is to clean every draft beer line with an alkaline cleaner every two weeks (14 days). That cadence keeps yeast, protein, and bacteria from establishing in the line and is the baseline this generator uses.

Some situations call for cleaning more often:

• Sour and fruited beers introduce wild yeast and bacteria that spread to other lines — clean weekly if you pour them.
• High-volume accounts (3+ kegs per week per tap) push more residue through the lines and benefit from a 10–14 day cycle.
• Cask, unfiltered, and hazy styles carry more sediment and protein, which builds up faster.

On top of the regular alkaline cleaning, run an acid cleaning roughly every three months to dissolve beer stone (calcium oxalate) — a hard mineral scale that alkaline cleaner alone won't remove.

What Dirty Lines Actually Cost You

When lines go uncleaned, beer leaves behind a film of yeast, protein, and beer stone, and the line grows bacteria and mold. You taste it before you see it: sour, vinegary, or buttery off-flavors, beer that pours cloudy, and foaming that wastes product. A neglected system can knock real money off every keg in dumped beer and comped pints — far more than the cost of a bottle of line cleaner. Clean lines are the cheapest quality-control investment a draft program has.

The Basic Cleaning Process

• Mix your alkaline beer line cleaner with water per the label and pump or recirculate it through each line.
• Let it dwell about 15 minutes, then scrub the faucets, couplers, and keg connections.
• Rinse thoroughly with clean water until it runs completely clear — no cleaner should remain in the line.
• Every few months, follow with an acid cleaner to remove beer stone, then rinse again.

Need the gear? We stock everything for the job — line cleaning chemicals, cleaning kits, pumps, and adapters.