6) Contaminated air source

• If possible/applicable, change to CO2 gas as a

 

pressure source.

 

• Filter all air after it leaves compressor.

 

• Oil fumes from compressor or kitchen grease

 

fumes will cause flat beer when pumped into

 

beer system.

 

• Always draw fresh air from an outside source to

 

compressor. Attach hair felt filter to the outside

 

intake, in addition to filter in line.

7) Defective Thomas valve (in

• Bacteria growth may result from beer backing up

the keg coupler) or tongue

through defective valves and vents in air line. Air

vents

pressure will then carry this into beer barrel.

 

Check and replace defective vents as necessary,

 

and thoroughly clean air line.

8) Unrefrigerated food placed on

• When unrefrigerated products, such as meats,

barrel of cold beer.

vegetables, fish or fruits are placed on barrel of

 

cold beer, the beer becomes warm long before

 

these products chill down to the cold

 

temperature. This change in temperature will

 

cause cloudy beer.

9) Sluggish pressure regulator

• Repair or replace the regulator as necessary. A

 

regulator seat or the regulator diaphragm may

 

require replacing.

10) Moisture in air system

• With the use of an air compressor, it is

 

imperative to have a moisture trap installed in

 

the pre-cooler, and drained daily. This is in

 

addition to an activated charcoal filter, necessary

 

to purify the air just before it enters the barrel.

 

• With tank type compressors, drain the tank

 

weekly.

 

• Moisture traps should be drained daily.

11) Drafts

• Rapid air movement, caused by an air fan or

 

exhaust blower, drawing air or blowing air across

 

the area where beer is drawn may cause the

 

level of foam to fall quickly. Redirect air flow so

 

that air movement is not running directly across

 

area where the beer is drawn.

Problem: Off-Tasting Beer

Beer has bitter and unpleasant odor or taste. Sour beer may taste and smell extremely yeasty or moldy.

Causes

Corrections

1) Improper or lack of cleaning

• System should be cleaned at least every two

 

weeks with an approved cleaner

•Coils should be thoroughly cleaned at least once every week or two.

•Brush and clean faucet.

•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.

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