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Old 05-05-2013, 09:02 PM   #1
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Default Converting gravity to Brix?

So far I have been using my hydrometer and understand gravity...
How do I convert brixs from my gravity reading?

Example: If I have 1.060 what would the brix be?
If I have 1.055 what would the bricks be? And if I have 1.090 what would the bricks be?


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Old 05-05-2013, 09:11 PM   #2
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divide gravity by 4 to get the Brix. Someone will no doubt tell you its more complicated (and it is) but brix X 4 puts you within a couple pts SG and the margin of error of most hydrometers.

example 1.060 ~ 15Brix
1.055 ~ 14 Brix
1.090 ~ 22.5 Brix


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Old 05-06-2013, 01:43 AM   #3
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Quote:
Originally Posted by gbx
divide gravity by 4 to get the Brix. Someone will no doubt tell you its more complicated (and it is) but brix X 4 puts you within a couple pts SG and the margin of error of most hydrometers.

example 1.060 ~ 15Brix
1.055 ~ 14 Brix
1.090 ~ 22.5 Brix
I don't know how you're coming out with your answers? When I divide 1.060 divided by 4 I get .265, if I divide 4 by 1.060 I get 3.77...
How did you get these calculations?
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Old 05-06-2013, 01:45 AM   #4
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Quote:
Originally Posted by badgerbrigade

i don't know how you're coming out with your answers? When i divide 1.060 divided by 4 i get .265, if i divide 4 by 1.060 i get 3.77...
How did you get these calculations?
60/4=15
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Old 05-06-2013, 07:20 PM   #5
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So it's actually the gravity subtract one then divide by four?
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Old 05-06-2013, 07:45 PM   #6
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http://www.fermsoft.com/gravbrix.php
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Old 05-06-2013, 09:46 PM   #7
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Brix conversion calculator

http://www.brewersfriend.com/brix-converter/

BTW, it says 1.060 is 14.7 brix, which is close to what gbx and skeezerpleezer said.
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Oh, and get a hydrometer. Psychic brewing is great and all, but hard numbers get rid of MUCH of the guess work.
"No longer drink only water, but use a little wine for your stomach’s sake and your frequent infirmities." ~ 1 Timothy 5:23
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Old 05-06-2013, 09:50 PM   #8
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Oh, and if you want the formulas:

SG -> Brix Equation:
Brix = (((182.4601 * SG -775.6821) * SG +1262.7794) * SG -669.5622)
(Source: http://en.wikipedia.org/wiki/Brix)

Brix -> SG Equation:
SG = (Brix / (258.6-((Brix / 258.2)*227.1))) + 1
(Source: Brew Your Own Magazine)
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Oh, and get a hydrometer. Psychic brewing is great and all, but hard numbers get rid of MUCH of the guess work.
"No longer drink only water, but use a little wine for your stomach’s sake and your frequent infirmities." ~ 1 Timothy 5:23
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Old 05-06-2013, 11:45 PM   #9
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Have you ever seen that movies Scanners...where the guys head explodes? Thats how I feel after reading those formulas, Mike!
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Old 05-06-2013, 11:53 PM   #10
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Pickled,

The x4 or /4 equation is a quick, easy, and basic way to convert. If you're brewing with a refractometer and want to get a rough idea of where you're at pre-boil, or during mash, or close to flame out, you can take a refractometer reading and say "okay, I'm at 12 brix, so roughly 1.048".

Something to keep in mind is this equation does not work once alcohol has been introduced to the equation. Alcohol will skew the reading, and therefore it will read higher than it actually is. I generally use a refractometer during my brew, and a final gravity hydrometer during fermentation after 5-6 days.

Cheers!


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