Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > General Techniques > How long does it take Co2 to equalize after a temp change?

Reply
 
LinkBack Thread Tools
Old 04-03-2010, 03:15 AM   #1
snailsongs
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Eugene, OR
Posts: 690
Liked 5 Times on 5 Posts
Likes Given: 1

Default How long does it take Co2 to equalize after a temp change?

I have been cold crashing an IPA for the last 2 days (48hrs), and I'm planning to bottle it tomorrow (w/ a yeast repitch)....my question is: how much residual carbonation should I account for at 50F degrees cold crash if it was fermented at 64f.....AKA, what should I plug into beersmith to calculate the priming sugar amount?

__________________
snailsongs is offline
 
Reply With Quote Quick reply to this message
Old 04-03-2010, 12:26 PM   #2
BeerPressure
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2008
Location: Dunkirk, NY
Posts: 837
Liked 3 Times on 3 Posts

Default

I use beersmith and on the recipe part it asks what temp the beer is and then it changes how much corn sugar should be added.

__________________
BeerPressure is offline
 
Reply With Quote Quick reply to this message
Old 04-03-2010, 01:09 PM   #3
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 60,202
Liked 4241 Times on 3091 Posts
Likes Given: 804

Default

You just use the fermentation temperature, even for lagers. The reason is that co2 is "held" better in a cold liquid. But cold crashing after fermentation doesn't make more co2. If the beer was fermented at 50, then it would have more residual co2 than if it was fermented at 70, but once it's done fermenting it's not producing more co2 anyway.

So, if the beer was fermented at 64, use 64 as the temperature of the beer. The highest temperature that the beer was at is the correct number to use for the calculation.

__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 04-08-2010, 06:28 PM   #4
snailsongs
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Eugene, OR
Posts: 690
Liked 5 Times on 5 Posts
Likes Given: 1

Default

Quote:
Originally Posted by YooperBrew View Post
You just use the fermentation temperature, even for lagers. The reason is that co2 is "held" better in a cold liquid. But cold crashing after fermentation doesn't make more co2. If the beer was fermented at 50, then it would have more residual co2 than if it was fermented at 70, but once it's done fermenting it's not producing more co2 anyway.

So, if the beer was fermented at 64, use 64 as the temperature of the beer. The highest temperature that the beer was at is the correct number to use for the calculation.
Thanks for your answer, Yooper! It took me 5 days to get back and see it, but it was exactly the answer I needed, and it makes sense.....
__________________
snailsongs is offline
 
Reply With Quote Quick reply to this message
Old 04-08-2010, 06:49 PM   #5
wildwest450
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Posts: 9,099
Liked 163 Times on 149 Posts
Likes Given: 4

Default

Quote:
Originally Posted by snailsongs View Post
how much residual carbonation should I account for at 50F degrees cold crash
Not to be a weenie, but that's not a cold crash. If your looking to clear an ale quickly you need to get in the 30's.
__________________
wildwest450 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
temp change during fermentation? coy Fermentation & Yeast 4 04-02-2010 04:43 PM
what will this temp change do to my beer? deepsouth Fermentation & Yeast 9 02-01-2010 07:59 PM
How does mash temp change flavor? EinBierBitte Beginners Beer Brewing Forum 4 10-05-2009 12:39 AM
15 degree temp change remuS Beginners Beer Brewing Forum 9 07-14-2009 09:46 PM
Drastic change in temp conditioning ? tokolosh General Techniques 1 12-19-2008 07:03 PM