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Well I just learned about the alternate, "advanced", ABV formula that is not used by some online calculators...

Turns out so my so called 13% stouts are more like 15%. I feel betrayed. I feel excited. Mostly I just feel excited :).

Edit: How did I not know about this? Is anyone else using the advanced formula for high gravity brews?
TNGabe opened my eyes a while back. That man knows his calculations.
 
Still trying to come to grips with the fact that my BCBS clone is apparently sitting at 15.8%. I noticed a lot of recipes online don't seem to use the advanced formula when they list the ABV. I'm wondering how many people actually use it.
 
Went to pour a beer only to find I apparently have a slow co2 leak somewhere in my system, and am now out of co2. *sad trombone*
What have I done to deserve this cruel and unusual punishment?
 
I made a basic wheat beer a couple of weeks ago with Wyeast 1010 and now I have a huge yeast cake that I really don't want to waste, but I really don't need another 5.5 gallons of wheat beer right away. (brewed it for my wife) The Wyeast website claims that it can be used to brew Kolsch but that seems a little odd. Looking for recipe ideas...
 
Well I just learned about the alternate, "advanced", ABV formula that is not used by some online calculators...

Turns out so my so called 13% stouts are more like 15%. I feel betrayed. I feel excited. Mostly I just feel excited :).

Edit: How did I not know about this? Is anyone else using the advanced formula for high gravity brews?
Any specific calculators that use this formula?
 
Any specific calculators that use this formula?

So most seem to use the standard formula: ABV = (OG - FG) * 131.25

Brewer's friend gives you the option of the alternate formula, which they claim is more accurate at higher gravities:
ABV = (76.08 * (og-fg) / (1.775-og)) * (fg / 0.794)

Homebrew Dad uses a similar formula as the Brewer's friend alternate with a different definition for ABW. This guy claims that pro brewers have used his formula and verified with lab results. Sorry for all the math:
ABV = ABW * (FG / .794)
ABW = (OE - RE) / ( 2.0665 - (.010665 * OE) )
RE = ( (q * OE) + AE) / (1 + q)
q = .22 + (.001 * OE)
OE = -668.962 + (1262.45 * OG ) - (776.43 * OG2) + (182.94 * OG3)
AE = -668.962 + (1262.45 * FG ) - (776.43 * FG2) + (182.94 * FG3)

For my recent stout, which went from 1.132 to 1.029, the ABV could be...
standard formula = 13.5%
brewer's friend alternate formula = 15.8%
homebrew dad formula = 13.9%


 
If that alternate formula on brewer's friend is accurate...

My English Barleywine is 16.98%

200w.gif
 
TNGabe , calculation master, what do you make of these 3 different formulas?
Sounds like the 3rd might be the best. I've always just looked at the brewers friend alt formula. I'm sure a brewing text would have a more definitive answer.

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When one of you inevitably opens a brewery and one day you find yourself contemplating purchasing a used Meheen, don't do it. Remember this.
 
My order of hops was a bit late so my IPA has now been fermenting for 2 weeks and I'll dryhop it tomorrow. Does it matter of I was a week late with dryhopping? Hopped the **** out of it with simcoe and mosaic already
 
My order of hops was a bit late so my IPA has now been fermenting for 2 weeks and I'll dryhop it tomorrow. Does it matter of I was a week late with dryhopping? Hopped the **** out of it with simcoe and mosaic already
Should be fine, especially if the fermenting has been continuous to keep oxygen away.
 
Yesterday I was beating myself up for doing a bad job saving money.

Today I order 1 lb Azacca, 1 lb Citra, 1 lb Columbus, 1 lb Mosaic, 1 lb Galaxy, 1 lb El Dorado, 4 oz Amarillo, 4 oz Chinook and 4 oz Motueka.

I'll tell myself that my homemade IPA's will be cheaper than going out but... Goddamnit.
 
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