There are various spreadsheet's and calculators that will help determine gravity during and after fermentation (when using a refractometer).
Many have used the "More Beer" calculator with good comparison's, and I have found another one(with a lot of research and other information) that may be of interest.
The website is http://seanterrill.com/2011/04/07/refractometer-fg-results/
You can download the calculator from there.
The two sites do not provide identical results but similar...
On More Beer-
Original Brix of 23
Apparent Brix of 12
Actual SG 1.019
On Seans calculator- (also provided with Wort correction factor, etc.)
Original Brix of 23
Final Brix of 12
Refractometer FG Correlations
Old Cubit 1.072
New Cubit 1.0204 > ABV 9.2%
New Linear 1.0214
He goes into great detail about his research and findings that is very compelling.
A quote from the site...
Interestingly, the linear correlation is more accurate than the cubic, albeit slightly less precise.
Any thoughts on this would be great!
I will also try to post some comparative results (with a Hydrometer) of my own when I get to final SG's from my first batch.
Cheers, TK
Many have used the "More Beer" calculator with good comparison's, and I have found another one(with a lot of research and other information) that may be of interest.
The website is http://seanterrill.com/2011/04/07/refractometer-fg-results/
You can download the calculator from there.
The two sites do not provide identical results but similar...
On More Beer-
Original Brix of 23
Apparent Brix of 12
Actual SG 1.019
On Seans calculator- (also provided with Wort correction factor, etc.)
Original Brix of 23
Final Brix of 12
Refractometer FG Correlations
Old Cubit 1.072
New Cubit 1.0204 > ABV 9.2%
New Linear 1.0214
He goes into great detail about his research and findings that is very compelling.
A quote from the site...
Interestingly, the linear correlation is more accurate than the cubic, albeit slightly less precise.
Any thoughts on this would be great!
I will also try to post some comparative results (with a Hydrometer) of my own when I get to final SG's from my first batch.
Cheers, TK