Beer has been in the primary for a week and a day. Today I noticed it started bubbling again......is this normal? Temp has been pretty constant at 68-70; may have dropped to 66 in the room last night as it got SUPER cold here.....but back to normal now.
More bubbling.....
- Thread starter kyle6357
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JoeShmo
Well-Known Member
Mine did the same exact thing. Even since the bubbling returned, my fg hasn't changed, and from what I've learned, thats all that really matters
fg? final gravity?
WyomingBrewer
Well-Known Member
yes, fg=final gravity
The airlock can bubble for a bunch of reasons. Ignore it and trust your hydrometer.
Just warming up a couple of degrees can cause co2 to come out of solution, and the airlock will bubble. When a cold front comes through, or the barometric pressure changes, the airlock can bubble. It doesn't mean much at all.
If fermentation is finished, the krausen will fall and the beer will start to clear and the SG readings will no longer change. Those are the main clues that it's done.
If fermentation is finished, the krausen will fall and the beer will start to clear and the SG readings will no longer change. Those are the main clues that it's done.
causeimthesquid
Well-Known Member
Here's my guess as to why you saw airlock activity.
CO2 can dissolve more readily in colder liquid. When the temperature dropped, CO2 went readily into solution. As the temperature increased, some of the CO2 was driven out of solution, causing your airlock to bubble.
As others have said, trust your hydrometer. And patience. . . .
CO2 can dissolve more readily in colder liquid. When the temperature dropped, CO2 went readily into solution. As the temperature increased, some of the CO2 was driven out of solution, causing your airlock to bubble.
As others have said, trust your hydrometer. And patience. . . .
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