Here is a Recipe for good repeatable blueberry wine,
Per 2 Gallon Batch:
6 qts BlueBerrys (home grown is what I use)
8 cups sugar
1-1/2 tsp of yeast nutrient
1 pack of lalvin RC-212 yeast
1 camden tablet
splash of lemon concentrate
Mash blue berrys in wine press or pan. Boil...