Maintenance
Every 2 weeks is the industry standard, though many home users clean monthly with good results at lower pour volumes. At the 2-week mark, bacteria and wild yeast begin colonizing lines and affecting flavour. If you notice off-tastes (sour, musty, flat) or excessive foam between scheduled cleans, clean immediately.
See our full maintenance guide for the step-by-step process and what products to use.
Uncleaned beer lines accumulate beerstone, wild yeast, bacteria, and eventually mould. The first sign is off-flavours — sour, stale, or 'wet cardboard' taste. Then excessive foam as CO2 escapes through biofilm. Eventually lines become permanently tainted and must be replaced entirely. Regular cleaning every 2–4 weeks prevents all of this.
Foamy pours have four common causes: (1) Temperature — keg or lines too warm; serving temp should be 2–4°C. (2) CO2 pressure too high — reduce regulator to 10–14 PSI. (3) Dirty lines — biofilm disrupts CO2 flow and releases dissolved gas. (4) Line length mismatch — lines too short for your system's pressure. Run through these in order before calling a technician.
Full diagnostics in our maintenance troubleshooting guide.
A well-maintained built-in draft system lasts 15–25+ years. The main wear components are tap seals, gaskets, and CO2 regulator diaphragms — all inexpensive to replace. Beer lines typically last 5–10 years before replacement is recommended. The stainless hardware (faucets, shanks, towers) is effectively lifetime. Kegerators typically last 10–15 years before the compressor requires service.