Homebrewing: Difference between revisions

The above method will generally yield an alcoholic level of about 4.5% (usually between 4% and 5%, depending on temperatures, sugars, amount of wort, etc). But to get a more exact measurement of alcohol it's worth buying a hydrometer. This will measure the specific gravity of the liquid. You make a measurement before adding yeast (no alcohol) and a measurement when you bottle the beer (after first fermentation, with alcohol). By comparing the two values you can work out the alcohol level.