Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > General Techniques > Spirits added to beer- Can you calculate ABV?
Reply
 
LinkBack Thread Tools
Old 12-04-2012, 09:34 PM   #1
powerfreak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: AZ, Gilbert, AZ
Posts: 125
Liked 2 Times on 2 Posts
Likes Given: 2

Default Spirits added to beer- Can you calculate ABV?

I have made a couple of brews now that have had rum and bourbon additions to achieve a flavor profile. Even vodka 'extracts' used at bottling.

Is there a way to calculate how much the ABV goes up from the booze additions?

Example: 5 gallons of a 5% beer had 6 ounces of bourbon added to the secondary along with the spices that had been soaking in that bourbon. That beer isn't going to be 5% anymore, so is there a way to calculate what the bourbon/rum/vodka/whatever adds?

__________________
powerfreak is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2012, 09:38 PM   #2
cheezydemon3
Registered User
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: louisville
Posts: 12,967
Liked 1642 Times on 1235 Posts
Likes Given: 3007

Default

Yes










What abv was the bourbon?

BTW 6 oz of puregrain wouldn't do much.

__________________
cheezydemon3 is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2012, 09:53 PM   #3
powerfreak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: AZ, Gilbert, AZ
Posts: 125
Liked 2 Times on 2 Posts
Likes Given: 2

Default

I need to double check. Say 35% abv.

__________________
powerfreak is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2012, 10:35 PM   #4
Leithoa
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2012
Location: Akron, ohio
Posts: 309
Liked 18 Times on 16 Posts
Likes Given: 16

Default

You need to find how many ounces of alcohol are from each liquid and then divide their sum by the total volume. You'll probably kick yourself after you see it. You could also take a weighted average.
First get everything in the same units.

Code:
5 gallons x 128 ounces / 1 gallon = 640 ounces
then figure out how many ounces ( by volume in this case) are pure alcohol
Code:
 [Ounces of Beer] x [ABV of beer] = 640  x 0.05 = 32
Next do the same for the spirit you're adding( assuming 80 proof liquor, or 40% ABV)
Code:
 [Ounces of spirit] x [ABV of spirit] = 6 x 0.4 = 2.4
Now we take the average
Code:
([ounces of alcohol from beer]+[ounces of alcohol from spirits]) / [Total volume of liquid] 
= (32+2.4)/(640+6) = 34.4/646 ~= 0.053 = 5.3% ABV
So it's a bit involved but not impossible.
__________________

1°: Graham's English Cider, Cider; 2°: Mango Melomel; Conditioning: Banana wine, Cider, Orange/Clover blossom mead, Cyser, JAOM, In like a Lion RIS ; Drinking: In like a Lion RIS


Reason: Wrong numbers. Thanks for pointing it out Qhrumphf
Leithoa is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 03:53 AM   #5
cheezydemon3
Registered User
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: louisville
Posts: 12,967
Liked 1642 Times on 1235 Posts
Likes Given: 3007

Default

But when you find that it added .03% alcohol, you will kick yourself for wasting all of the scratch paper.

__________________
cheezydemon3 is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 04:42 AM   #6
powerfreak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: AZ, Gilbert, AZ
Posts: 125
Liked 2 Times on 2 Posts
Likes Given: 2

Default

Thanks for that. Yeah, feeling kind of silly for wanting to know.

Based on taste, you would think it added way more than that, but the math doesn't lie, right?

__________________
powerfreak is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 01:51 PM   #7
cheezydemon3
Registered User
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: louisville
Posts: 12,967
Liked 1642 Times on 1235 Posts
Likes Given: 3007

Default

Bourbon has a TON of flavor. I found it overpowered any brew I did. Kinda lost my taste for bourbon beer.....

__________________
cheezydemon3 is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 01:54 PM   #8
TyTanium
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Posts: 3,949
Liked 549 Times on 387 Posts
Likes Given: 418

Default

Quote:
Originally Posted by cheezydemon3 View Post
Bourbon has a TON of flavor. I found it overpowered any brew I did. Kinda lost my taste for bourbon beer.....
Subtly is the key. Generally we're trying to make bourbon barrel beer, not bourbon beer. The only bourbon added is what's left in the wood. Less is more, IMO.
__________________
TyTanium is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 02:09 PM   #9
cheezydemon3
Registered User
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: louisville
Posts: 12,967
Liked 1642 Times on 1235 Posts
Likes Given: 3007

Default

Quote:
Originally Posted by TyTanium View Post
Subtly is the key. Generally we're trying to make bourbon barrel beer, not bourbon beer. The only bourbon added is what's left in the wood. Less is more, IMO.
Thanks! Yeah I burned myself on it. "More is more" being my general MO.....

I will get back to it, need a while to recover.

I actually have 1 low hop PA , a bastardized apfelwine and a blonde kegged, 2 pale ales (low hop) on deck.

Need to get right with my tastebuds!
__________________
cheezydemon3 is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2012, 02:10 PM   #10
powerfreak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: AZ, Gilbert, AZ
Posts: 125
Liked 2 Times on 2 Posts
Likes Given: 2

Default

Oh I agree. The recipes I've done booze on have had rum soaked oak cubes and bourbon soaked oak cubes. When I add the cubes, I go ahead and transfer the booze that wasn't soaked up too. It's worked well, as it's usually just a couple of ounces, but this last one had a bit more, which is why it is more pronounced.

As a bottler, I'm hoping the taste mellows a bit over time.

__________________
powerfreak is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
NEW craft beer store in Minneapolis- Elevated Beer, Wine & Spirits SurlyBrew Beginners Beer Brewing Forum 7 05-07-2013 01:42 PM
Beer, Wine, & Spirits. Rarig Introductions 1 08-06-2012 11:55 PM
Spirits/Beer pairings? Beardedterror Beginners Beer Brewing Forum 1 02-14-2012 01:52 AM
Blending beer and spirits martinirish General Techniques 15 10-28-2009 09:37 PM
Making mash/spirits with mr. beer keg? lovebeer Wine Making Forum 45 03-07-2008 03:37 PM