SGI:06 – Fermentation Finished 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) Back – Next Page