The "Econo Hydrometer" measures liquid density or specific gravity (S.G) to monitor fermentation and sugar levels. As a general rule an active wine will ferment -.010 S.G per day, thus providing a visual indication of fermentation.
SPAN style="FONT-SIZE: 8pt; COLOR: #000000; FONT-FAMILY: Verdana">To determining the alcohol content use the alcohol scale on the hydrometer. Take one reading before fermentation. Take the final reading after fermentation is complete. E.g.
|
Original Reading: |
|
11% S.G. |
1.085 |
|
Final Reading: |
(+) |
-1% S.G 12% |
0.992 |
The difference between the first and last reading gives you the percentage of alcohol in your wine, e.g. First reading is 11% (S.G – 1.085). Final reading is minus 1% (S.G – 0.992). The difference between these readings is 12%, which means your wine is 12% alcohol by volume.