I'm brewing an English bitter, but with California ale yeast (WLP001). Batch size is 3.75 gallons, I mashed at 153 degrees F, and I pitched with one White Labs liquid yeast packet. My original gravity was 1.033, I pitched at 70 degrees F and the room has been kept between 60-65 degrees F.
It has been a week since pitching and I just checked the gravity. The carboy was at 61 degrees F and had a gravity of 1.015, far higher than my predicted FG. Activity in the carboy is minimal, but the beer is still turbid.
Do you guys think the yeast will putter along and continue to ferment slowly because of the lower temp or should I take some sort of action to rouse them?