One of my friends asked me if I was missing any StarSan. He's had similar experiences with his conical fermenters. It seemed unlikely as I pitched the yeast at 65 F. At high krausen it had risen to 68 F. My basement is 63 F. Apparently the change in temp was sufficient to suck back Star San to fill the tube. I have not cold crashed it yet. I just checked on it and much to my dismay watched a drop or two of StarSan plop down on top of the beer out of the 1" blowoff tube. It's been very windy here the past couple of days. Guess I'll rack the beer off below the color line and dry hop it in the secondary and keep my fingers crossed. Thanks to all for all your replies. I'm going to build a two chamber blowoff reservoir so it doesn't happen again. Cheers!
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