Guide
How to Measure Alcohol Content at Home
Learn what hydrometer readings can tell you about fermentation strength, and where common homebrew estimates fall short.
Beer Brewing
Calculate an approximate beer alcohol by volume from gravity readings taken before and after fermentation.
Estimate beer strength from original and final gravity readings.
Good to know
Take repeat readings several days apart. Stable gravity is an important check before packaging.
It can create a small additional amount of alcohol during bottle conditioning; this estimate does not include it.
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Guide
Learn what hydrometer readings can tell you about fermentation strength, and where common homebrew estimates fall short.
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