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Old 01-22-2013, 05:39 PM   #1
basilchef
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Default question on my fg.

The refractometer reads just over 6.5 brix and has been steady for two days. The beer was made 8 days ago (simple ipa). Should be lower. I tried rousing the yeast and upping temp but nothing is working. If i add more yeast do i risk over attenuation? I dont want it too dry.

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Old 01-22-2013, 08:06 PM   #2
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Use a hydrometer.

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Old 01-22-2013, 11:42 PM   #3
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To elaborate, refractometers don't work once alcohol has been produced. Use your hydrometer and find out what the actual gravity is.

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Old 01-22-2013, 11:45 PM   #4
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Refractometers do work with alcohol present, but you need to find the calculation to determine the actual reading in specific gravity. Someone has a spreadsheet out there. I know there are calculators that correct for fermented beer.

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Old 01-22-2013, 11:47 PM   #5
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That being said, I would still use a hydrometer.

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Old 01-23-2013, 04:07 AM   #6
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I cant i dont have a test tube for a hydrometer sample.

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Old 01-23-2013, 04:21 AM   #7
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Quote:
Originally Posted by basilchef View Post
I cant i dont have a test tube for a hydrometer sample.
Buy one, they cost like 3-4 bucks
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Old 01-23-2013, 04:31 AM   #8
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Quote:
Originally Posted by BeerCrafter2011 View Post
Refractometers do work with alcohol present, but you need to find the calculation to determine the actual reading in specific gravity. Someone has a spreadsheet out there. I know there are calculators that correct for fermented beer.
http://onebeer.net/refractometer.shtml

There is a calculator that does the correction for you. It's not perfect, but it gets the job done.

Honestly, I've never understood the 'you have you use a hydrometer' for FG. Sure you have to use a hydro to know the exact value, but you can certainly tell if the beer is done (within a few points of FG) using a refractometer.
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Old 01-23-2013, 06:37 AM   #9
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Completely forgot about the alcohol veriable. When I originally looked at a chart it was for a pre fermentation brix to gravity conversion. Thanks for the posts, I'm right where I should be ''points" wise. Cheers

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