So I started making some Mead a while back about two gallons or so. Right before it first fished fermenting I was hit with a short notice deployment. My buddy let's me keep a few things at his house while I'm gone. My fish guns and Mead. Come back 6 months later move into my new place. About a month later I take a look at the Mead and realize that the water in the air lock is gone. No more barrier between the Mead and the air. Not sure home long it was like that but it was there when I left. Is my Mead still good to drink or should I just dump it?