Why is there too much foam when I pour my beer?Updated 12 days ago
A small amount of foam is normal, but if your glass fills mostly with bubbles, it’s usually caused by beer temperature, carbonation behavior, line cleanliness, glass condition, or pouring technique. Most cases can be resolved with a few simple checks.
1. The beer is not fully chilled
Beer that is not completely cold will release CO₂ more quickly during pouring, creating excessive foam.
What to do:
Allow the keg to fully chill inside the machine.
If the keg was recently moved, let it rest in cooling mode for 1–2 hours.
2. Foam may increase if keg pressure is higher after fermentation
If pressure remains on the higher side at the end of fermentation, CO₂ inside the keg will be more active, which can lead to extra foam during pouring.
What to do:
Keep the keg in cooling mode longer so more CO₂ can dissolve back into the beer.
3. The dispensing tube or spout needs cleaning
Residue inside the dispensing line can cause CO₂ to break out rapidly when beer is poured.
What to do:
Rinse the dispensing tube and spout with warm water, or run a full cleaning cycle.
4. Glass temperature or residue
Warm, dry, or detergent-coated glassware can lead to unstable or excessive foam.
What to do:
Rinse the glass with cold water before pouring.
5. Pouring technique or flow speed
A fast or steep pour creates turbulence and leads to more foam.
What to do:
Hold the glass at a 45° angle
Start pouring gently
Use the flow-control clamp on the F1 to adjust the speed if needed
This small adjustment often reduces foam immediately.
6. The keg was recently moved or shaken
Movement activates CO₂ inside the keg and can increase foam.
What to do:
Let the keg rest and cool for 1–2 hours before pouring.
7. Manual adjustment if excess foam persists
If foam continues even after the steps above, you can reset the keg pressure and stabilize carbonation.
Steps:
Disconnect the gas tube from the keg lid.
Pull up the PRV to release all pressure from the keg.
Restart CO₂ mode in the cooling program.
Set the temperature to 37°F and the pressure to 6 psi.
Reconnect the gas tube.
Let the keg sit for 48 hours before drinking.
Need help?
If excessive foam continues after these steps, feel free to contact us at [email protected].
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