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Old 04-22-2008, 12:58 AM   #1
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Default Alcohol Content

Is there a way to determine the alcohol content from a beer using another tool other than a Hydrometer? For example, let's say that I took beer off of the shelf and wanted to measure it's A.C. with never taking it's S.G.

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Old 04-22-2008, 01:00 AM   #2
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Well it depends. You could probably search for the SG of whatever beer your interested in or look up a common Sg for that style.

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Old 04-22-2008, 01:08 AM   #4
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Wow i guess i read the OP too fast. I was thinking you were talking about a commercial beer off the shelf. Ill go sit down and be quiet now.

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Old 04-22-2008, 01:10 AM   #5
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Thanks, guys!

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Old 04-22-2008, 02:04 PM   #6
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You could distill off the alcohol and measure how much you get. Or warm the beer enough to boil off the ethanol, and measure what's left.

'course, then you won't be able to drink the beer

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Old 04-22-2008, 02:30 PM   #7
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The Swmbo works in a Histology lab and they use little strips of some kind of paper, They have to determine how much alcohol is in a solution they are making for the tumors they are cutting. I don't know if you can buy them publicly but you can check at a lab supply store and Ill ask her when she gets home and post back.

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Old 04-22-2008, 04:16 PM   #8
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I remember I asked that question a while back on these forums

But it was to calculate

From these forums the answer that was given to me was an equation

OG - FG * 131 will give you your ABV

For example

my Apfelwein is as follows

OG = 1.060
FG = .996

1.060 - .996 = 0.064

0.064 * 131 = 8.384

so the ABV is 8.384%

now dont ask me where the 131 comes from, perhaps someone else here could explain it better

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Old 04-22-2008, 04:19 PM   #9
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Quote:
Originally Posted by Bike N Brew
Or warm the beer enough to boil off the ethanol, and measure what's left.
I almost suggested a similar method, but I think with such a low concentration of alcohol, the results will be very inaccurate.
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Old 04-23-2008, 10:46 AM   #10
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Too much math......use this link to make your life easier (if you forget to carry the 1)

http://www.brewhaus.com/Calculators_s/46.htm

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