Avanti BD7000 instruction manual Flat Beer

				FLAT BEER
Foamy head disappears quickly: beer lacks usual zestful brewery fresh flavor.
		Causes		Corrections
1		Greasy glass		Do not wash beer glasses together with glasses that have
				contained milk or any other fatty substance. Lipstick is a fatty
				substance.. Make sure it is removed from glass.
			 Excess amount of germicides build up and leave a fatty film on
				glass, which may cause flat beer.
			 It is preferable to steam and sterilize glasses where health
				laws permit.
			 Wash glasses thoroughly with a good detergent.
			 Do not use soap.
			 Do not dry-wipe glasses. Permit glasses to air-dry by placing
				them on wire or corrugated metal.
			 Rinse in fresh cold water just before serving beer. It is best to
				serve beer in a wet glass.
2		Improper drawing of		Open faucet quickly and completely.
		beer into glass.		Check and find the correct distance to hold glass from faucet
				when drawing. Proper foam should be a tight creamy head,
				and the collar on the average glass should be ¾” to 1” high.
			 Beer drawn without head has appearance of being flat.
3		Not enough pressure.		Increase pressure if beer runs too slowly. Correct flow is to fill
4		Defective Thomas and		Check all washers frequently, particularly the air vents. A
		Tongue Vents.		clogged vent will obstruct the flow of air or Co2.
	 Pressure is shut off.			Check source of pressure. Check power source when air
				compressor is used. Air compressor should never be
				connected to light switch. Make certain to have a separate
				electric plug outlet for the compressor.
				Check CO2 tank, if empty, replace (See inside cover for proper
				procedure).
			 When barrel is tapped, and proper pressure applied, pressure
				must always remain on until barrel is empty.
			 If beer is started without first applying pressure beer will be
				wild at the start, and flat towards the end.
5		Pre-color, or beer		With an accurate thermometer, check temperature in pre-
		system, too cold.		cooler or box.
			 Temperature at the faucet should always be colder by at least
				two degrees than at the precooler or box.
6		Sluggish pressure		A regular seat, or the regulator diaphragm, may require
		regulators.		replacing.
			 Also, check the same as you would for Corrections 3 & 4.
7		Contaminated air		Filter all air after it leaves compressor.
		source.		Oil fume from compressor, of kitchen grease fumes, pumped
	 Oil or grease fumes.			into beer, will cause Flat Beer.
			 If possible CO2 gas should be used as a pressure source.
8	 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.
9	 Rapid movement of air.			An air fan, or exhaust blower drawing air, or blowing air, across
				the bar where beer is drawn, may cause the dead of foam to
				fall quickly. Fans or blowers should be located so that air
				movement is not directly across from where beer is drawn.
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