In August I made some Apfelwein, some concord grape wine, and some cherry wine. I drank some of the Apfelwein early, and it tasted pretty good, but I was told to wait about six months on it to let the apple flavor come out.
Well, at a little over six months I decided to taste it again, and it tastes terrible. It tastes exactly like the rubber stopper part of my airlock.
I bought my airlocks from a reputable home brew supplier, and filled them halfway with vodka, as many recommended.
I didn't panic, and just put a regular cap on the one gallon glass carboy and put it in the refrigerator. Three months later it tastes exactly the same. It is undrinkable.
What did I do wrong? I have five gallons of cherry, three gallons of grape, and two more gallons of Apfelwein -- I hope they aren't all ruined.