I've been brewing for a few years now and recently ran into something that has me scratching my head. I brewed a pale ale over two weeks ago and had the beer in a primary for two weeks. It was clear and looking really awesome. When I transferred it to a secondary to do a dry hop (in a hop bag) the beer became very cloudy and still has not showed any signs of clearing in 4 days - I even went so far as to crash it in my keezer to see if this would help. Nothing. The hops were in a sealed bag in the freezer so I don't think it's a hop issue. I left a sizable yeast/trub cake in the bottom w/a small amount of beer on top to avoid sucking any of that into the secondary. The carboy I used was a 5 gallon Big Mouth Bubbler and the batch was 2.5 galls but I did lay down a heavy layer of CO2 on top prior to adding the fermentation lock and lid. The only thing I've heard after doing some research is that Starsan left in the carboy (not foam, but liquid) will cause cloudy beer. Although I can't be 100% sure I find it had to believe there was any amount of Starsan in the bottom as I upended the Big Mouth and let it drain. I'm sure the beer will taste awesome but I'd like to find out what happened and how to avoid it. Anyone out there have any ideas?