Hi, I just got a wine kit from my local store. I realized it was 2 years old after getting it home and the shop replaced the yeast and clarifying agents. I am trying to make it right now. The juice smells fine and tastes sweet/good. The all grape pack smells like vinegar though. It tastes better than it smells, maybe slight vinegar taste though my girlfriend said it was fine. It is kind of sharp tasting though. Does it sound like it's infected or normal for the grape packs?