I brewed an AG Kolsch a couple weeks ago. The fermentation temp has been a bit high (ambient temperature around 67 F), but otherwise nothing atypical.
I'm fermenting with Wyeast 2656, which I understand is supposed to be finished in around 4-7 days. I checked on it after 4 days, and it had a thick pellicle at the time. Repeated checks revealed no visual change, even after 10 days. I was worried about infection but figured there was nothing I could do about it so I just let it do it's thing.
Today I finally took action. Another check revealed the pellicle is still there, although the bubbles have reduced in size a bit.
I took a gravity sample and it looks to be about 1.012, exactly what I was expecting.
It has a nice flavor, so I'm not suspecting infection (but haven't ruled it out).
So what's up with the pellicle? I've done about 8 AG batches and none of them have looked anything like this when the beer was done fermenting. Will the beer clear itself up if I give it time or is this more common than I think?
Any info or advice would be much appreciated.