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Krausen in My Growler?!

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ophillium

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So I bottled a bitter 8 days ago and have just noticed what seems to be a krausen in the only growler I filled that day. In the small air pocket between the beer and the lid is a foamy layer whose appearance I can explain in no other way, since the growler wasn't agitated at all.

The bitter recipe calls for OG 1.040, FG 1.009. My batch came in a bit high with an OG of 1.050, FG 1.019 after 3 full weeks in the fermenter. The discrepancy in gravity is likely because I brewed in a bag and squeezed the **** out of the bag to get all the wort out of it -- something I have not done before or since. I bottled because the +.010 gravity points seemed permanent -- unfermentable sugars or some such. Bad assumption?

I guess my real question is whether the beer in my growler could be fermenting (which means it is a krausen) and what that would mean for the beer within it. Any thoughts or experience with this?
 
Carefully loosen the lid. If it is still fermenting (a real possibility) that think could blow, and growler bottle bombs are nothing to screw around with. (Growlers aren't made for bottling anyway.)
 
Carefully loosen the lid. If it is still fermenting (a real possibility) that think could blow, and growler bottle bombs are nothing to screw around with. (Growlers aren't made for bottling anyway.)

Good call -- I just let out a ton of gas (no pun intended) that very clearly wanted to be free from that bottle. I just hope it doesn't go flat now :/
 
Hate to say it, but if the growler is overpressured, your bottles might be at risk too. Might want to very carefully put the bottles in a Rubbermaid tub with a lid. No clinking bottles, and gloves and safety glasses are a good idea.
 

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