Help figuring potential alcohol

[Maheesh]

If the brix of a settled sample is 21.7, can anyone predict the final alcohol? Pinot Gris using a 23 yeast.Thanks!

 

[sour_grapes]

If the brix of a settled sample is 21.7, can anyone predict the final alcohol? Pinot Gris using a 23 yeast.Thanks!

Likely about 12.5%, give or take: Brix Conversion Calculator | Brewer's Friend

 

[mikewatkins727]

Buy a couple of triple scale hydrometers. They're cheap and the 3 scales are BRIX, Specific Gravity and Potential Alcohol. Problem solved.

 

[winemaker81]

The reason @mikewatkins727 said to buy 2, is that if you only buy 1 you will break it. If you buy 2, the second one will set unused in a drawer. Which is ok -- better too many than too few!

 

[whackfol]

This site has some great readings about Winemaking. The following link takes you directly to the conversion table and discussion of the conversions factors Ben used:
http://www.brsquared.org/wine/CalcInfo/HydSugAl.htm

 

[Bmd2k1]

Snag FermCalc app or hit their website ✌

Cheers!

 

[G259]

(Initial Specific Gravity - Ending SG) * 131

(1.100 - 0.995) * 131 = 13.755%
(1.090 - 0.995) * 131 = 12.445%

Obviously, if you go completely dry (0.990), and/or start higher,
you will increase ABV. Now, each type of yeast has an 'alcohol tolerance',
so the yeast will die off at that level, and if you started REALLY high to get a high ABV,
you will end up with a very sweet wine (we have all done it early on!)

 

[whackfol]

I urge people interested to read Ben’s paper. Fermcalc uses a single factor as does the previous poster. There is no single accurate calculation. Understanding the factors and the calculation will help you understand the limits of the calculation.

I send most of my wines out for testing before bottling. Abv is not an important measure to me so I don’t always pay for it. When I do, I’m usually shocked by the difference between what I predicted and what I found.

 

[JohnT]

Brix multiplied by 0.6

I get 13.02. Admittedly, using the SG calc is probably more accurate, by mine is easier to do in your head.