Had a 5 gallon carboy of apple cider, done fermenting and was resting. About 2 days before bottling I noticed that the airlock had fallen off and looks like a small amount of mold developed on the top layer of the juice. I quickly racked it into another sanitized carboy, leaving the top couple inches. Is this batch ruined? Should I wait and see if mold redevelops? Or is this batch kaput?