Avanti BD7000 User Manual

Page 18

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18

OFF-TASTE BEER


Often bitter and bitey, sometimes completely odor, carrying an unpleasant taste.

Beer lines should be flushed after each barrel is empty. Maintain fresh, Clean, sanitary
conditions at bar. Smoke, kitchen odors, fly sprays, and disinfectants will harm the tast and
flavor of beer, making it unpalatable. These conditions, as described, may come from an air
source, or from actual contact with the glass at bar.

Causes

Corrections

1

 Improper,

or

no

cleaning of coils, hose,
leads, and direct draw
system.

 Coils should be thoroughly cleaned at least once a week.

 Brush and clean faucet. (see Wild Beer, Correction #2)

 Taps, rods, and tap-Seal fitting should all be scoured, using a

detergent, then rinsed clean.

 Direct draw Systems must be cleaned the same as coil

systems: 4 feet of direct draw line accumulates as much per
foot as any other system.

2

 Contaminated Air Line.

Defective Thomas or
Tongue Bents.

 Air hoses, air lines and vents, should be examined, and if

contaminated, replaced.

 Dirty air lines should be washed with a good cleaning

compound, normally used for cleaning coils, and then rinsed
clean.

3

 Rubber

hose

will

absorb and retain
odors.

 Rubber hose will absorb and retain odors. An approved Vinyl

tubing is best for air since it does not absorb moisture, and is
not affected by oily substances.

 A fresh, outdoor, air line is imperative when air is the source

of pressure.

4

 Unfiltered air, Air is

moisture ridden or oily.

 Air must always be filtered.

 See Flat Beer, Correction #8 for moisture ridden air.


SOUR BEER

May taste and smell extremely yeasty, or moldy.

Causes Corrections

1

 Contaminated

Air

Line.

 See Cloudy Beer, Correction #3

 See Off-Taste Beer, Correction #2

 See Flat Beer, Correction #7

2

 Improper transportation

of barrels of beer, Beer
delivered on open truck,
during high summer
temperatures, may be
the cause for starting
secondary fermentation.

 If at all possible, deliver beer barrels in closed body,

refrigerated truck. If open staked body truck is used, cover
barrels with a tarpaulin for protection against summer heat,
and circulating warm air.

 Truck should never be loaded the night before morning

delivery, unless beer is refrigerated in truck.

3

 No refrigeration, and

improper rotation.

 The rule is first barrel in, first tapped.

 Refrigeration must be left on winter or summer.

 Sour beer is generated as a result of secondary fermentation,

above 45 degrees. Retail outlets that do not have refrigeration
should ice up barrels, or at least cover barrels with tarpaulin or
burlap bags.

 Best temperature for barrels is 38° to 40°.

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