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Verfügbare Sprachen
The foam layer rapidly disappears : the beer does not have the usual fresh brewery taste.
CAUSE
Greasy glass
Beer drawn incorrectly in the glass
Not enough pressure
Aeration holes defective.
Beer system or cooler too cold.
Low pressure regulators
Air source contaminated.
Air movement rapid.
B
B
E
E
E
E
R
R
F
F
L
L
A
A
T
T
SOLUTIONS
Do not wash beer glasses with other glasses which have
contained milk or other fatty substances. Lipstick is a greasy
substance. Make sure to remove it from the glass.
An excess of germicides builds up and leaves a greasy film on the
glass, which can cause a flat beer.
It is preferable to clean glasses with steam and sterilize them.
Meticulously wash the glasses with a good detergent.
Do not use soap.
Do not dry the glasses. Let the glasses dry in the open air.
Open the tap completely and rapidly.
Check and define the right distance to hold the glass with respect
to the tap while drawing. A good foam is creamy and dense, and
the head should be 2 to 3 cm high.
Beer without foam has the appearance of a flat beer.
Increase the pressure if the beer flows too slowly.
Check all the seals frequently, particularly the aeration holes. A
clogged aeration hole will obstruct the flow of air or CO
Check the pressure source.
Check the CO
tank. If it is empty, replace it (following the
2
appropriate procedure).
When the keg is connected and the pressure is correct, the
pressure must always remain active until the keg is empty.
If the beer is drawn although pressure was not applied earlier, it
will be savage in the beginning and flat toward the end.
Using a precise thermometer, check the temperature of the
cooler or the keg.
The temperature at the tap should always be at least two
degrees less than that of the cooler or the keg.
The regulation diaphragm might have to be replaced.
Greasy kitchen vapours pumped into the beer will cause a flat
beer.
A fan, or an air extraction, or a draft of air in the room where the
beer is drawn can cause the rapid disappearance of the foam.
Fans or blowers should be placed so that air movements are not
directed directly to the spot where the beer is drawn.
.
2
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