high activity after pulling a sample

[Arose302]

I have a german Hef fermenting and after 12 days I had zero airlock activity. I pulled a sample with a sanitized sample taker to test the SG, sanitized the airlock, covered the carboy with sanitized foil while i measured. After replacing the airlock i all of the sudden have some moderate airlock activity. Wondering if this is cause for concern ie sign of an infection?

 

[schokie]

How long since you took the sample? Does the beer look normal? Anything odd growing on top?

I wouldn't worry about it though. It's probably just some CO2 coming out of solution. Anytime I bump the carboy or reseat the bung I get some airlock activity. No big deal.

 

[suprchunk]

It's probably just some CO2 coming out of solution.

This is probably the culprit.

 

[Yooper]

You created some nucleation points when taking the sample, so the co2 is coming out of solution a bit. It sounds fine.

 

[Arose302]

Thanks for the input guys! Nothing growing and the beer looks great.