Calculators
Chaptalization and alcohol calculator
Work out the sugar that raises a must to a target Brix or the water that lowers it, the potential alcohol at each, and alcohol from gravity.
Bench arithmetic, with the working shown. Nothing here is saved, and none of these numbers is a figure for a label. Each one comes from a working formula with its assumption stated. Bench-trial anything before it goes into a tank.
Chaptalization and dilution
27.2 g/L, about 17 g/L per degree Brix. Dissolve it in warm juice and add it during the first third of the ferment. Never add it dry to the tank.
Alcohol from gravity
(OG − FG) × 131.25, accurate to a few tenths. This isn’t a figure for a label. Label alcohol comes from a lab, not a hydrometer.
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