Originally Posted by WIP
It makes ok table wine. Not good or great, but ok.
Did you ever drink Mogen David? It's a sweetened concord wine. It's not very good, but it'll give you an idea of what concord wine tastes like. I don't sweeten mine, as I like it tart.
I make wine out of catawba grapes, too, and all kinds of stuff. Just like a bottle of pinot noir doesn't really taste like grapes, tomato wine (to be extreme!) doesn't really taste like tomatoes, if that makes sense.
Some table grapes don't make decent wine at all. But some aren't bad. The thing is, table grapes aren't bred for wine so they don't have enough natural sugar in them and they may be quite a bit more acidic.
So you can't expect a bottle of 2007 cab franc from a jug of Welch's- but you can make a very nice hooch, or a very drinkable table wine with just a bit of extra ingredients.