Alas, I am sure this may be a "stupid question," but I am not
educated enough on the subject of making wine to know if it is
even a valid question or not, let alone know the answer.

In October I started my first batch of wine, using Concorde Grape
juice. All went well as far as I could tell: fermentation was
robust and protracted, and eventually it ceased after a month or
so. I have kept the air lock on, and it has sat still ever since
after one racking at the end of October.

Now I wish to know--- how does one know if the wine is good or
bad? That is, how does one know if it has turned to vinegar? I
have no idea what it is supposed to taste like. I can tell it is
alcoholic, and that all of the sugar is gone (it is "dry" as far
as I can tell), though I do not know the alcohol content (I broke
my hydrometer in October) nor do I know if it tastes the way it
should.

I will probably bottle it in a day or two and take a sample to the
"Yeast Herder's Gatherum" at Dragonfest in August and ask someone
to taste it for me.

I followed what I believe to be the correct steps, as I have
outlined in my two videos:

http://www.youtube.com/watch?v=QZWyYeDQnUk
http://www.youtube.com/watch?v=tJPhkDwIZro


--
http://desertphile.org
Desertphile's Desert Soliloquy. WARNING: view with plenty of water
"Why aren't resurrections from the dead noteworthy?" -- Jim Rutz