Beer_Eugenics
Well-Known Member
If I add 375ml of 180 proof whiskey to a 5 gallon batch how much would this raise my ABV. I came up with about 1.8%, sound right?
The calc above doesn't take into account the increase in total volume:
whiskey bump = 337.5 / (18930 + 375) =0.01745 or 1.745%
Teeny difference Assuming that the beer is lower, the current abv isn't necessary to calculate the bump, but would of course be necessary to calculate the final abv.
Assuming that the beer is lower, the current abv isn't necessary to calculate the bump, but would of course be necessary to calculate the final abv.
laddg said:I must, respectfully, disagree.
Without knowing the original alcohol content it is not possible to accurately calculate either the 'bump' in percentage alcohol, or the ABV. Again, the differences are minor, but real.
If the beer starts off with 0% alcohol, then the calculations above apply well. If the beer started off with 90% ABV (the same as the whiskey), then there would be no effective change, and the bump would be zero, and the final ABV unchanged. As before, if the beer started off with very high alcohol, then the bump would be negative and the final ABV would be lower than original.
You must know current content to calculate either bump or final.
DJG
itsme6582 said:I thought everyone here was an engineer. You sound like a scientist.
I say it's close enough.
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