And as a person who doesn't know anything about math I calculated%8 something I found websites and let the brewing calculators calculate it for me and I went mad every time I found 8 then I said to myself: YOU KNOW NOTHING JOHN SNOW YOU KNOW NOTHING. And finally I considered reading the comments by luck.
but a refractometer needs an alcohol correction factor , doesn't it ? that is ; a FG reading is no longer accurate through the lens because the alcohol has affected the reading right?
At 3:25 you give a formula that is said to be more accurate. Where does this formula come from? I've always used the first formula that you gave thinking it was the best one to use. Punching in all the appropriate numbers yields a difference of 0.8% ABV for my homemade wine. This I consider a significant difference. If you could, please let me know where this second formula comes from. Thanks.
If it's specific gravity could(n't) you weigh original product Vs. final product in specific unit(i.e. tablespoon full volume) on balance scale. Find scale of value & mark respectively on scale. Would that work. More alcohol lighter weight/s.g.?
I do not understand, i do not have a brix scale on my refractometer when i look in it only has a similar scale going from 0 to 80% and my control substance (JD honey 35%) is showing up as off the scale. I am extremely confused as to how to use this refractometer doesnt have a brix scale.
the refractor is sold for different things. for example i have 2 one for abv and one for brix. i cant interchange them bc the scales, so you need to buy the refractor buit with a scale for what you need. for example i cant use my brix refractor to determine abv. bc the scale is different. But redractors are not as accurate as this video claims. you can test the inaccuracy of the refractor by using store purchased spirits and checking with tye abv on the label. athe refractor is off multiple times.
I'm so confused!! If the refractometer read 1016 how did you get 1006.? And the fg said 10 but the number was 1004. I dont understand, could you help me w this please? Thank you so much.
Great video! I don't know if you can in the first place, buy do you know if it's possible to just measure alcohol content after fermentation? I heard something about this while researching how to use a refractometer.
Thank you so much ! I am from Saudi Arabia the only one i could find here is a refractometer to measure my Distilled spirit .. I couldn't find a hydrometer so I guess I will stick with the refractometer ... thank you again your video very useful
@@lilymcalister1825 since then i did maybe 2-3 batch of hydromel and even some red wine with some commercial yeast. its got a very very faint taste, but a unique taste. i personally like the bread yeast taste. i dont think i will buy more commercial wine yeast when i run out. as it is more expensive and not available here except online.
@@brandoncorwin5857 search on youtube, many tests were made and most often bread yeast give a better taste and finished product then the "real" brewing yeast.
Um, not sure what equations you're using, but if your brew was a 1.065 OG and dropped to a 1.004 FG, thats more in the ballpark of 8.0% ABV. There are other equations you must use to calculate the true Final Gravity if using a refractometer, as alcohol skews the FG reading. . which is what I'm trying to figure out!
ABV = (76.08 * (OG - FG) / (1.775 - OG)) * (FG / 0.794) ABV = (76.08 * (1.06543239677 - 1.04003130566) / (1.775 - 1.06543239677)) * (1.04003130566 / 0.794) = 3.56742627877 It looks like you inserted an extra zero. The only "extra" equation is the one to convert from Brix (or whatever your units are given by your refractometer) and specific gravity. That is also given in the video: SG = (Brix / (258.6 - ((Brix / 258.2) x 227.1))) + 1.0
You, my friend, have added the extra zero. 4:08 Haha I see in the calculator screen shot right before that you got 1.040. Not 1.004. Original Gravity of 1.065 and final of 1.040, sounds like she needs somemore yeast!
Hi there Mike! I now this is an old video but I wanted to give it a try an recalculate your numbers but this time using the Homebrew Refractometer calculator at www.northernbrewer.com/pages/refractometer-calculator, and turns out that the number I got was ABV 5.327%, not 3.5% haha, but I would like to confirm this number with you. What do you think? Are you using a different method right now? I'm about to use that calculator for the first time and just want to make sure I get the right number haha. Thank you!
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Note: There is a typo at 4:08. It should say 1.040 for the Final Gravity and not 1.0040.
And as a person who doesn't know anything about math I calculated%8 something I found websites and let the brewing calculators calculate it for me and I went mad every time I found 8 then I said to myself: YOU KNOW NOTHING JOHN SNOW YOU KNOW NOTHING. And finally I considered reading the comments by luck.
Great video! Just what I need for my micro brewing as to not waste any. Thanks for posting.
but a refractometer needs an alcohol correction factor , doesn't it ? that is ; a FG reading is no longer accurate through the lens because the alcohol has affected the reading right?
At 3:25 you give a formula that is said to be more accurate. Where does this formula come from? I've always used the first formula that you gave thinking it was the best one to use. Punching in all the appropriate numbers yields a difference of 0.8% ABV for my homemade wine. This I consider a significant difference. If you could, please let me know where this second formula comes from. Thanks.
Can I use it to calculate ABV in my Kombucha? I don't 2F hard booches in my Kombucha
HELLO, :D
Can i have a link to more info about the formula used to claculate de abv?
Does the Brix-SG calculation used here take into account the refractory deviation caused by the increasing presence of alcohol during fermentation?
John Hayes no, thats wrong. You have to measure it by compairing the SGravity which is given by the hydrometer.
Except you can't use a refactometer for the final gravity as it is affected by the alcohol so you need to use a different formula or use a hydrometer
That was an excellent video! Thanks for all the work.
If it's specific gravity could(n't) you weigh original product Vs. final product in specific unit(i.e. tablespoon full volume) on balance scale. Find scale of value & mark respectively on scale. Would that work. More alcohol lighter weight/s.g.?
I do not understand, i do not have a brix scale on my refractometer when i look in it only has a similar scale going from 0 to 80% and my control substance (JD honey 35%) is showing up as off the scale. I am extremely confused as to how to use this refractometer doesnt have a brix scale.
the refractor is sold for different things. for example i have 2 one for abv and one for brix. i cant interchange them bc the scales, so you need to buy the refractor buit with a scale for what you need. for example i cant use my brix refractor to determine abv. bc the scale is different. But redractors are not as accurate as this video claims. you can test the inaccuracy of the refractor by using store purchased spirits and checking with tye abv on the label. athe refractor is off multiple times.
I'm so confused!! If the refractometer read 1016 how did you get 1006.? And the fg said 10 but the number was 1004. I dont understand, could you help me w this please? Thank you so much.
Great video! I don't know if you can in the first place, buy do you know if it's possible to just measure alcohol content after fermentation? I heard something about this while researching how to use a refractometer.
What I got out of this video is that coming up with measurement units is a leading cause of death among chemists
Mad scientist! 💥👌💪
Bruuuh
Thank you so much ! I am from Saudi Arabia the only one i could find here is a refractometer to measure my Distilled spirit .. I couldn't find a hydrometer so I guess I will stick with the refractometer ... thank you again your video very useful
You're very welcome.
The refractometer for alcohol measurement is different from the one for sugars.
Im from Saudi and i have an extra hydrometer if you need it :)
Please
1/how to measure alkahol in vinegar
2/this process can to measure alcohol less than 1% example 0.2 or 0.02 or less
Imma use this to test my kombucha abv :)
Me, too, but only my 2F hard booches
@@Tofu_Pilot do you have a good recipe for hard booch which can share here?
i always used bread yeast to brew and my stuff was always pretty strong. next time i will try to measure it.
If you liked it w bread yeast, you will probably love it even more with the proper yeast. 😉🍻
@@lilymcalister1825 since then i did maybe 2-3 batch of hydromel and even some red wine with some commercial yeast. its got a very very faint taste, but a unique taste. i personally like the bread yeast taste. i dont think i will buy more commercial wine yeast when i run out. as it is more expensive and not available here except online.
Brother uuuugh
@@brandoncorwin5857 search on youtube, many tests were made and most often bread yeast give a better taste and finished product then the "real" brewing yeast.
Great 👍 vide bud ! Thx
Noted. Thanks for the math lesson!
You cant use a refractometer for FG. Fail!
Thank you for this video, sorry you ended up brewing sparkling water.
Um, not sure what equations you're using, but if your brew was a 1.065 OG and dropped to a 1.004 FG, thats more in the ballpark of 8.0% ABV.
There are other equations you must use to calculate the true Final Gravity if using a refractometer, as alcohol skews the FG reading. . which is what I'm trying to figure out!
ABV = (76.08 * (OG - FG) / (1.775 - OG)) * (FG / 0.794)
ABV = (76.08 * (1.06543239677 - 1.04003130566) / (1.775 - 1.06543239677)) * (1.04003130566 / 0.794) = 3.56742627877
It looks like you inserted an extra zero. The only "extra" equation is the one to convert from Brix (or whatever your units are given by your refractometer) and specific gravity. That is also given in the video:
SG = (Brix / (258.6 - ((Brix / 258.2) x 227.1))) + 1.0
You, my friend, have added the extra zero. 4:08
Haha I see in the calculator screen shot right before that you got 1.040. Not 1.004.
Original Gravity of 1.065 and final of 1.040, sounds like she needs somemore yeast!
I was thinking the same thing. 1.004 would be way higher ABV.
thaanks
1:08 oh wow.... I previously understood nothing!
Hi there Mike! I now this is an old video but I wanted to give it a try an recalculate your numbers but this time using the Homebrew Refractometer calculator at www.northernbrewer.com/pages/refractometer-calculator, and turns out that the number I got was ABV 5.327%, not 3.5% haha, but I would like to confirm this number with you. What do you think? Are you using a different method right now? I'm about to use that calculator for the first time and just want to make sure I get the right number haha. Thank you!