I am doing a Itsok Kolsch from Joy of homebrewing. It has been lagering for 2 weeks now out in my garage. I checked on it today and noticed what appears to be condensation around the neck of the carboy. I have attached a picture for your viewing pleasure. I noticed that the temperature has dropped to around 50 degrees (down from 55 earlier in the week) out there, so perhaps that could be the cause. Should I be alarmed? Should I bring it inside (to around 70 degrees)? Ideas?