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Brewing Bits 5 GALLON BREW = 23LTRS WATER EBU = BITTERNESS X VOLUME ALPHA ACID X 2 Example 20 Bitterness x 23 volume = 460 Alpha Acid of hops 3.2 x 2 = 6.4 460 divided by 6.4 = 71.875 = 72gms of hops ABV – START GRAVITY – FINISH GRAVITY Example Start gravity 1040 Finish Gravity 1010 1040 - 1010 = 30 30 divided by 7.36 = an ABV of 4% WATER TEMPERATURE FOR MASH = 76˚ TO 78˚ STRIKE TEMPERATURE FOR MASH = 66˚ WATER TEMPERATURE FOR SPARGE = 78˚ ROLLING BOIL = 1 ½ HOURS COOL BEER TO 20˚ THEN PITCH YEAST PREFFERED START GRAVITY = 1040 PREFFERED FINISH GRAVITY 1010
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