First, narrow it down
Is there no foam at all, or does a head form and then disappear? Is the problem only one beer or across the draft line?
What you're seeing
| Symptom | Possible cause | What to do next |
|---|---|---|
| No head at all | Possible carbonation/gas issue | Record gas status and beer temperature. |
| Head forms but vanishes | Likely glassware residue or beer condition | Try a beer-clean glass. |
| One keg only | Keg quality or local line | Compare another tap. |
What to check
Measure the beer temperature
Carbonator’s draft guide calls for roughly 34–38°F. The Brewers Association commonly recommends around 36–38°F at the point of dispense. Beer far outside the intended range may pour poorly.
If there is no head, check the gas supply indicators
A keg without the gas mix or applied pressure for its system can lose carbonation or pour badly. Note whether the cylinder or blender indicates low gas; do not change regulator settings.
If the head quickly collapses, test the glassware
Grease, detergent residue, food oils, or lipstick can destroy foam stability. Try a properly washed and rinsed beer-clean glass.
Compare another keg and faucet
One keg affected can indicate its beer condition or line; every keg affected may point to shared cleaning, temperature, or gas issues.
Review how long the beer has been on tap
Beer kept too warm or on tap too long can lose freshness. Check dates and cooler performance.
Why it happens
Beer head depends on carbonation, proteins, temperature, the beer’s recipe, and glass cleanliness. A fast-disappearing head is not always a pressure problem.
Need service?
Call if several beers lack head after temperature and glassware checks or if the gas supply needs balancing.
Contact us (215) 726-8000