Distillers Wort Chart

Hydrometer table
Specific gravity (S.G.) Potential alcohol % vol. Sugar / litre grams

 Notes

1.010 0.9 12.5

 

1.015 1.6 25

 

1.020 2.3 44

 

1.025 3.0 57

 

1.030 3.7 76

 

1.035 4.4 95

 

1.040 5.1 107

 

1.045 5.8 120

 

1.050 6.5 132

Range average for grain wort

1.055 7.2 145
1.060 7.9 157.5

 

1.065 8.6 170

 

1.070 9.2 182.5

 

1.075 9.9 195

 

1.080 10.6 208

 

1.085 11.3 225

 

1.090 12.0 240

 

1.095 12.7 252

 

1.100 13.4 265

Upper limit for bread yeasts

1.105 14.1 277

 

1.110 14.9 290

 

1.115 15.6 302.5

Upper limit for wine yeasts

1.120 16.3 315

 

1.125 17.0 327.5

 

1.130 17.7 340

 

1.135 18.4 352

Upper limit for turbo yeasts

 

 

 

To set a wort for fermentation:  Use the hydrometer chart and adjust your sugar content for desired potential alcohol and type of yeast used.  After adjustment, take your first hydrometer reading and record it as the Original Gravity (O.G.) figure.

When fermentation is complete, take your second hydrometer reading and record it as the Final Gravity (F.G.) figure.

Using the equation for % Alcohol By Volume, you can calculate the actual alcohol content achieved for the wort.  Compare this to the potential alcohol volume given in the chart, and you will get an idea of how efficient, or otherwise, your attenuation is.

You can also calculate the percentage of Alcohol By Weight which is sometimes used in beer brewing.

Copyright 2007 H Jackson.  All rights reserved.