Coldbreak Brewing Giveaway - Winners Drawn!

Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Mead Forum > calculation problem - help
Reply
 
Thread Tools
Old 02-25-2011, 06:01 PM   #1
400d
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Posts: 584
Liked 3 Times on 3 Posts
Likes Given: 1

Default calculation problem - help

ok I know this is not about beer, but still couldn't find better place to post it. I have a mead that is fermenting for more than a month. It's 5 liters (1.32 gallons)

Original gravity was 1.135 and after a month I added 0.5 liters (0.132 gallons) of water to top up because the head space could cause oxidation after a long time.

now, how do I know what is the exact OG and how do I calculate % alcohol after this dilution?

thanks!


__________________
Brew me a river...
400d is offline
 
Reply With Quote
Old 02-25-2011, 06:10 PM   #2
BendBrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2010
Location: Bend, Oregon
Posts: 3,169
Liked 75 Times on 58 Posts
Likes Given: 23

Default

1.32*135 = 178.2

178.2 / 1.452 = 122.7

og = 1.123 (Rounded up)


BendBrewer is offline
 
Reply With Quote
Old 02-25-2011, 06:22 PM   #3
400d
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Posts: 584
Liked 3 Times on 3 Posts
Likes Given: 1

Default

Quote:
Originally Posted by BendBrewer View Post
1.32*135 = 178.2

178.2 / 1.452 = 122.7

og = 1.123 (Rounded up)
what is 1.452 in this calculation?
__________________
Brew me a river...
400d is offline
 
Reply With Quote
Old 02-25-2011, 06:25 PM   #4
BendBrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2010
Location: Bend, Oregon
Posts: 3,169
Liked 75 Times on 58 Posts
Likes Given: 23

Default

Your total volume. (1.32 gallons) + (0.132 gallons)
BendBrewer is offline
 
Reply With Quote
Old 02-25-2011, 06:26 PM   #5
400d
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Posts: 584
Liked 3 Times on 3 Posts
Likes Given: 1

Default

Quote:
Originally Posted by BendBrewer View Post
Your total volume. (1.32 gallons) + (0.132 gallons)
ok thanks a lot!
__________________
Brew me a river...
400d is offline
 
Reply With Quote
Old 02-25-2011, 06:27 PM   #6
metaltim
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Houston
Posts: 331
Liked 4 Times on 4 Posts

Default

Quote:
Originally Posted by 400d View Post
what is 1.452 in this calculation?
it's a simple relationship

original gravity / original volume = new gravity / new volume.

OG = 1.135 (use 135)
OV = 1.32 gal
NV = 1.32 + .132 as you stated, so 1.452
solve for NG


metaltim is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
IBU Calculation question... pacebrew General Beer Discussion 8 04-13-2011 07:40 PM
Co2 output calculation? BendBrewer General Beer Discussion 4 02-22-2011 12:57 AM
Help with OG Calculation (Math Deficient) BrewNow General Beer Discussion 4 01-30-2011 09:59 PM
IBU calculation help Pharmguy General Beer Discussion 4 01-24-2009 08:53 PM
calculation of s.g OCC General Beer Discussion 5 05-31-2005 02:29 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS