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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Final Gravity
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Old 11-26-2010, 12:55 AM   #1
clayroc
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I could have sworn I saw something to calculate the FG of my brew but for the life of me I can't find where I read it.

Is there a strait forward way of calculating the FG and final alcohol content of your brew?

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Old 11-26-2010, 01:04 AM   #2
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(og-fg) x 131 = ABV

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Old 11-26-2010, 01:14 AM   #3
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Perfect, now how do I estimate the expected FG?

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Old 11-26-2010, 01:16 AM   #4
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You can measure the FG with a hydrometer.

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Old 11-26-2010, 01:17 AM   #5
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try this http://beercalculus.hopville.com/recipe

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Old 11-26-2010, 01:18 AM   #6
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Or, if you want to estimate it, you can use Beersmith, or Promash, or a free online one like: http://beercalculus.hopville.com/recipe

EDIT: Damn Doug, you beat me to it!

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Old 11-26-2010, 01:21 AM   #7
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Brewmate http://www.brewmate.net/ is my favorite free one.

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Old 11-26-2010, 02:12 AM   #8
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again perfect exactly what I was looking for thanks all

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Old 11-26-2010, 02:58 AM   #9
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Quote:
Originally Posted by BigB View Post
Or, if you want to estimate it, you can use Beersmith, or Promash, or a free online one like: http://beercalculus.hopville.com/recipe
Promash doesn't estimate the FG. It assumes the FG is 1.012, and allows you to plug in the real value when you know what it is.
Beersmith does estimate the FG, but for the way that I brew, the estimates are at least 5 points higher than I regularly achieve.
You cannot rely on FG's predicted by software unless you have verified that the software predictions consistently match your own results.

-a.
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Old 11-26-2010, 03:19 AM   #10
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ajf, with that in mind, do you think this sort of software can still be useful for designing recipes? At least a starting point for a first attempt?

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