If the mash water doesn't reach the top perforated plate, add extra water to fill up the space and enter figure into the additional mash water field. If you are using Micro Pipework then ignore the additional mash water field.
Converts refractometer readings taken of wort (Brix WRI) to their actual value in Brix / Plato and Specific Gravity. Supports alcohol correction of refractometer readings when calculating FG (which requires OG).
In general the ABV of the beer will be similar to the kilogram/pounds of grain. However the ABV will depend on how you mash and ferment so it is best to use this calculator to get an accurate figure.