New Activity???

Bitchesbrew22 said:

Hello all,
I brewed an ale 2 weeks ago today. Initially fermentation seemed strong and I saw plenty of airlock activity and krausen, but by the 48 hour mark airlock had stopped and most of the krausen was gone. I was worried at first but after searching the forums I saw many just advised to wait it out and not worry, so I did. At the one week mark peeked in and the beer seemed dormant, no krausen and nothing to worry about(besides lack of activity). I peeked in again today and have a thin layer of foam that seems to be primarily hop residue??(I used pellets and no bag during boil)
Is this Normal? I was surprised seeing this after almost two weeks of nothing?
Any ideas what it could be??

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RM-MN said:

Your beer has CO2 dissolved in it from when it was bubbling. Something caused it to come out of solution. Have you had any weather events where the atmospheric pressure dropped? Change in temperature? Did someone move or bump the fermenter? Any of these could cause it.

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