* The indication when the Balling saccharometer is floated in grape juice. It indicates the proportion by weight of total solids. (Most of the solids are sugar)
+ The indication when the french, or the Dujardin, saccharometer is floated in grape juice. Direct reading shows potential alcoholic content by volume of the unfermented juice
Remember that results are not presise -- the yield of alcohol varying under the conditions of fermentation. To make wine of 11% alcohol by volume, add quantity halfway between the needed for 10% & 12%.
Note: all columns are refferable by the specific gravity