Yeap. Welch's juice concentrate. I am made some very decent cheap wines from that stuff. Blueberry-raspberrry and raspberry-cranberry were really good.
I decided to do a lighter 6 gallon mixed fruit wine since my 3 gal carboy is in use right now and will not be free for a few months. Here's what I did.
Uncle Sam Walton's Sangria
1 x 10 lb bag of mixed fruit (mango, peaches, pineapple and strawberries).
4 X 3 lb bags mixed berry (blackberries, raspberries and blueberry).
22lbs fruit total.
1 bottle Welch's Concord grape juice. 64oz
about 7.5 lbs Sugar and water to 1.078 and 6.25 gal.
1 tsp tannin
1 T pectic enzyme
1 T energizer
We shall see. Still not sure about acid. This will be the first batch I will add acid too.