Cause 3
Improper type of air line
Correction
• A rubber hose will absorb and retain odors. Try using a plastic or copper hose
instead.
General Recommendations for Off-Taste Beer:
Beer lines should be flushed after each keg is emptied. Maintain fresh, clean,
sanitary conditions around the dispenser. Smoke, cooking odors and disinfectants
will harm the taste and flavor of beer. These conditions, as described, may come
from an air source or from actual contact with the glass when drawing beer.
Beer Condition: Sour Beer
Beer tastes and smells extremely yeasty or moldy.
Cause 1
Improper transporting of beer kegs. Beer that is delivered on an open truck
during high summer temperatures may start a secondary fermentation process.
Correction
• If possible, have beer kegs delivered in a closed, refrigerated truck. If an open
truck is used, cover beer kegs with tarpaulin for protection against summer heat
and warm air.
Beer Condition: Wild Beer
Beer that is either all foam, or too much foam and not enough liquid.
Cause 1
Improper drawing of beer into the glass.
Correction
• Open the faucet quickly and completely.
• Proper foam should be a tight, creamy head, and the collar on the average glass
should be 3/4" to 1" high.
Cause 2
Yeast growth or other obstructions in the faucet, which is usually caused by
a non-refrigerated faucet. Worn faucet parts and worn faucet washers.
Correction
• Check for, and replace any kinked, dented, or twisted lines from the barrel to the
faucet.
• Examine for frayed coupling washers behind the faucet that may cause an
obstruction.
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