Home/Support Center/Draft beer is warm
DRAFT BEER / TROUBLESHOOTING

Draft beer is warm

Warm beer is one of the fastest routes to foamy pours. The useful test is the temperature of the poured beer, not just the cooler display.

START WITH THE SYMPTOM

First, narrow it down

Use a clean food-safe thermometer to check a fresh pour and compare that reading with the walk-in, keg cooler, and glycol-system indicators if present.

AT A GLANCE

What you're seeing

SymptomPossible causeWhat to do next
All beer warmCooler or common cooling issueCheck storage temp and unit status.
First pour warm onlyTower/line warmingRequest circulation inspection.
One distant tap warmLocal trunk or glycol issueRecord location for service.
WORK THROUGH IT

What to check

01

Check the poured beer first

Carbonator’s field sheet flags beer above 40°F as warm and targets 34–38°F in its setup. Many draft references aim for 36–38°F at the tap.

02

Check keg storage temperature

A warm keg takes time to cool throughout. Make sure the cooler door closes fully and the thermostat is operating normally.

03

Compare the first pour with the next

If the first beer is warm and the next is colder, the faucet or tower may be warming between pours. That points toward tower air circulation or glycol cooling.

04

On long-draw systems, inspect the glycol indicators

Carbonator’s supplied notes reference a reservoir near 35°F and a glycol power pack near 28–32°F in different diagnostic situations. These are not interchangeable: the correct setpoint depends on the equipment and what the sensor is measuring.

05

Check cooler airflow and maintenance

Blocked fans, overloaded kegs, open cooler doors, or a glycol unit showing a fault can prevent proper cooling.

06

Do not chase foam by altering gas pressure

Cooling and gas balance work together. Have service check the cooling loop and correct temperatures instead of changing regulator settings.

Why it happens

Beer can become warm between the cooler and the glass. A temperature difference between keg and faucet helps locate where heat is entering.

WHEN TO CALL CARBONATOR

Need service?

Call if the keg is cold but the faucet runs warm, the glycol system alarms, or the cooler cannot maintain its normal temperature.

Contact us (215) 726-8000