🍺 Top-down brew: Eisbock/eisbier alcohol calculation

Alcohol by volume after adding or removing water

volume (gallons or liters) before freezing or adding water
alcohol by volume before freezing
volume (gallons or liters) after freezing or adding water

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Eisbier (or eisbock) is a high alcohol beer made by lowering the temperature of the fermented beer to just below the freezing point. Removing the frozen water raises the alcohol content of the remaining beer.

The same calculations can be used to determine a lowered alcohol content if water is added to the beer.

Basic alcohol calculators for volumen and weight are available on the alcohol calculations page.

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