After bottling
- Thread starter ikafka
- Start date
Help Support Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum:
aiptasia
Well-Known Member
Slightly, but not enough to change it that much. Beersmith might be able to tell you how much alcohol is added. I doubt it's anything above a couple of tenths of a percent.
Well,from what I've seen al the different ABV formulas have numbers ranging from .2-.5 % depending on which you use to calculate ABV. There was a thread on this some time last year. Try a search.
5 oz of corn sugar will yield about 1.003 SG, and assuming that's fully fermented, you net about 0.4% for a 5 gallon batch.
That's just based on my math, but I'm sure you'll end up with a similar number no matter which way you cut it.
That's just based on my math, but I'm sure you'll end up with a similar number no matter which way you cut it.
BamaRooster
Well-Known Member
Looks like this advise is spot on!
According to a website I saw, gravity is measured in points per pound per gallon.
For dextrose, I THINK it was about 43 points. That means when 1 pound (454g) is dissolved in 1 gallon, it yields a gravity of 1.043.
If you made this 5 gallons, it would be 43/5 = 8.6. That means topping up another 4 gallons to make it 5 gallons would yield only 1.008.
If you prime at, say, 4.54 grams (to make it easy) per 500ml bottle, it means you would need 4.54 grams x 46 bottles to make 20884 grams (209)
For dextrose, I THINK it was about 43 points. That means when 1 pound (454g) is dissolved in 1 gallon, it yields a gravity of 1.043.
If you made this 5 gallons, it would be 43/5 = 8.6. That means topping up another 4 gallons to make it 5 gallons would yield only 1.008.
If you prime at, say, 4.54 grams (to make it easy) per 500ml bottle, it means you would need 4.54 grams x 46 bottles to make 20884 grams (209)
Sorry, 209 grams.
209 is, for sake of argument, about half of 454 grams (1 pound). This means it will add about 1.004 to a batch of beer. 1.004 down to 1.000 (water) makes 0.5% alcohol. Therefore, it adds 0.5%.
209 is, for sake of argument, about half of 454 grams (1 pound). This means it will add about 1.004 to a batch of beer. 1.004 down to 1.000 (water) makes 0.5% alcohol. Therefore, it adds 0.5%.
I always took the Cooper's formula (OG-FG)/7.46+.5=ABV% to mean .5% for the whole batch. I've used 4.1oz of destrose to get 2.0 volumes of co2 in a 23L (6.072 USG) batch of ale. Worked fine for mu Burton ale.
By my math,
46 PPG × (4.5÷16) pounds ÷5 gallons = 2.5875 points
0.0025875×131.25 = 0.339609375, or .34% ABV in a 5 gallon batch primed with 4.5 oz dextrose. Pretty much in line with what everyone else said, but it's my 2 cents.
46 PPG × (4.5÷16) pounds ÷5 gallons = 2.5875 points
0.0025875×131.25 = 0.339609375, or .34% ABV in a 5 gallon batch primed with 4.5 oz dextrose. Pretty much in line with what everyone else said, but it's my 2 cents.
