Airlock sign of no oxygen? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Airlock sign of no oxygen?
Cool Brewing Giveaway - Supporting Membership Drive & Discount

Reply
 
Thread Tools
Old 04-17-2011, 07:38 PM   #1
Mpavlik22
Recipes 
 
Apr 2011
Pittsburgh, PA
Posts: 311
Liked 1 Times on 1 Posts



Ok not sure where to post this & couldn't find any other posts on this topic.

When I secondary I use an airlock. It always raises up and bubbles slowly (more right after racking, but typically a bubble a hour or so). I kno this does not indicate fermentation.

My question is does that mean the oxygen is removed from the Carboy (since c02 is heavier than air)? Or would there b a layer of c02 over the beer pushing oxygen out of the airlock?

Thanks


__________________
"If you fail to plan, then you plan to fail"

 
Reply With Quote
Old 04-17-2011, 07:45 PM   #2
Arneba28
 
Arneba28's Avatar
Recipes 
 
Feb 2008
Amherst, Western New York
Posts: 2,192
Liked 17 Times on 12 Posts


If your beer is not fermenting or degassing there will be no layer of CO2 sitting on top of it. Therefor, nothing to create pressure on the water in your airlock. Your beer is no longer fermenting so no gas will come out of it.


__________________
My Kegerator Project

 
Reply With Quote
Old 04-17-2011, 08:10 PM   #3
Mpavlik22
Recipes 
 
Apr 2011
Pittsburgh, PA
Posts: 311
Liked 1 Times on 1 Posts


I always take a gravity reading to confirm fermentation is complete. Even after I rack to the secondary I get bubbles out of the airlock. I assumed this was c02.?.?
__________________
"If you fail to plan, then you plan to fail"

 
Reply With Quote
Old 04-17-2011, 08:14 PM   #4
GuldTuborg
HBT_SUPPORTER.png
 
GuldTuborg's Avatar
Recipes 
 
Mar 2010
OH
Posts: 4,505
Liked 937 Times on 643 Posts


Quote:
Originally Posted by Mpavlik22 View Post
Even after I rack to the secondary I get bubbles out of the airlock. I assumed this was c02.?.?
Yes, you're most likely seeing C02 come out of solution. The agitation of racking the beer is the most likely cause. A rise in temperature will do the same thing. It's nothing to worry about. As to whether or not it will create a small layer of C02 over the beer, I don't really know. If your concern is oxidation for a long secondary aging, the best solution is to minimize headspace. Barring that, you could flush the headspace with C02, if possible.
__________________
*Member: The HBT Sweaty Fat Guys Cigar Club

 
Reply With Quote
Reply
Thread Tools



Forum Jump