Originally Posted by fatnhappy
Hi, I made a KBS clone. Took the starting and final gravity and it's 6.3 percent ( a little low for KBS I know). When I put it in the secondary, I added 1 cup of bourbon and oak chunks. How do I calculate how much alcohol the bourbon added to the beer?
We gave you the formula! If you are confused, just ask. (There are some old threads too, so be sure to search).
OK - let's say your bourbon is 100 proof (50%). 1 gallon is 16 cups.
So for a 5 gal batch: ((80 x 6.3) + (1 x 50)) / 81 = 6.84%