Does anyone know of an accurate ABV Calculator app (Android)? I have 2 separate ones and one just asks for my hydrometer readings, the other asks for temps of those readings, and the 2 calculations are around 1% off from one another.
ABV=(og-fg)*131.25
you don't need a whole app for that
Good info. Thanks!
Just out of curiosity, do yall know how that formula came to be? Again just curious. Love learning stuff haha
Unless you are a commercial wine maker and are making wines and meads within certain ABV limits to avoid certain tax thresholds then expecting ABV calculations to be more accurate than 1% is a joke. You are dealing with a hydrometer that is fundamentally inaccurate; your own reading which will be inaccurate; and a calculator which is approximate. When someone claims that their wine or mead is 12.3% ABV I gotta laugh. It's 12%. anything more precise is simply wrong.
How would you do a step feeding from 1.078 to 1.000 back to 1.020. back to 1.00 then up to 1.060?That's the formula I use. Easy, and fairly accurate. I'm lazy enough to leave off the .25 when I do it in my head.
I have a wine that started at 1.100, and finished at .992.
(1.100- .992) x 131 = 14.148 % ABV (14.1% is good enough for me)
or (1.100- .992) x 131.25= 14.175%
Either way is really close.
How would you do a step feeding from 1.078 to 1.000 back to 1.020. back to 1.00 then up to 1.060?
It stopped when I did the last .060That'd be a super super high ABV, let's see, 78 points, plus 20 points plus 60 points. 158 points. So an OG of 1.158 and a FG of whatever it ended up with.
I used fletchman's bread yeast if that helps at allIt stopped when I did the last .060
It doesn't matter- the "points" are the same.I used fletchman's bread yeast if that helps at all
It ended up a little bit sweeter then I had plans for but it is good surprisinglyIt doesn't matter- the "points" are the same.
So you'd take the 1.158 OG and subtract the final gravity to get the ABV. If it stopped at 1.060 (good gosh that's SWEET!), you'd still just subtract it the same way, 1.158- 1.060 = 12.85% ABV.
Unless you are a commercial wine maker and are making wines and meads within certain ABV limits to avoid certain tax thresholds then expecting ABV calculations to be more accurate than 1% is a joke. You are dealing with a hydrometer that is fundamentally inaccurate; your own reading which will be inaccurate; and a calculator which is approximate. When someone claims that their wine or mead is 12.3% ABV I gotta laugh. It's 12%. anything more precise is simply wrong.
Add me to the list of those who round to the nearest whole number for ABV. We're not sending this stuff out to a lab for analysis LOL.
So then are you making an argument in favor of refractometers? Granted, FG readings are susceptible to computational errors to an extent, but refractive indices are subject only to the physics of light transmission (corrected to .10 degree of brix).
I won't speak for @bernardsmith but remember that refractometers measure the refraction of light in a sucrose solution, and once alcohol is in the mix, it skews the refraction of that light, so any refractometer readings are done by using alcohol correction software, and are thus even more subject to computational errors.
Enter your email address to join: