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Old 05-27-2012, 02:28 AM   #1
fatnhappy
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May 2012
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I, I made a nice KBS clone. I measured the starting and final gravity and it is 6.3 percent ( a little low for KBS I know). I added a cup of bourbon and oak chunks to it when it went into the secondary. How do I measure what alcohol percent of the beer now?

 
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Old 05-27-2012, 02:37 AM   #2
cshamilton
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South Central Michigan, MI
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If you check with a hydrometer you will get the correct FG but you won't have a true OG. So, you cannot measure it at this point without lab equipment.

But you CAN calculate it:

Volume of beer X alcohol % + Volume of bourbon X alcohol % and the divide by the new total volume.
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Old 05-27-2012, 02:42 AM   #3
fatnhappy
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May 2012
Estell Manor, NJ
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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?

 
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Old 05-27-2012, 03:03 AM   #4
CastleHollow
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If you check with a hydrometer you will get the correct FG but you won't have a true OG. So, you cannot measure it at this point without lab equipment.

But you CAN calculate it:

Volume of beer X alcohol % + Volume of bourbon X alcohol % and the divide by the new total volume.

 
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Old 05-27-2012, 12:23 PM   #5
cshamilton
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Mar 2011
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Quote:
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%
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Old 05-27-2012, 12:43 PM   #6
fatnhappy
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May 2012
Estell Manor, NJ
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Thanks for your help. Hope the beer is as tasty as KBS, one of my favs.

 
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