Help! I've never had this happen. I've made about 20 batches of beer and been kegging since my fourth batch. This most recent batch, however sucked my blowoff water (made from iodophor and tap water) back into the carboy. The beer is complete...I only got about 4 gallons worth of beer, but when I moved the carboy to keg the beer, the pressure changed I assume, and sucked all the iodophor water back into the carboy. It was about a cups worth. The beer tastes great and I don't want to throw it out. Is it safe??? Please help...Thanks.