THE HYDROMETER
Fermentation Finished
  Fermented hydrometer degrees divided by 8 = % volume of alcohol.
 Fermentation finished
Starting hydrometer degrees
Finished hydrometer degrees
Total fermented hydrometer degrees		 1059
980
79

 

79 divided by 8 = about 10% alcohol by volume

159
900
1 059 grammes

59 grammes = 1059 hydrometer degrees

80
900
980 grammes

980 grammes = 980 hydrometer degrees (specific gravity)

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