Ok folks, I have recently finished my 10th batch of beer and all is going quite well AND I helped talk a co-worker into making his own beer as well.
I have been going off of my LBS'es house recipies for the most part with great success. After having a couple of bottles of Dogfish Head's Black and Blue, I'm looking to make a clone or a close copy. It is a Belgian Ale, 10% alcohol, with blackberries and blueberries.
If I take my LBS'es house Belgian Double which is 6.x ABV and add 3 lbs of blackberry and 3 lbs of blueberry puree from a can, will I end up with too much fermentables and kill off my yeast? Should I use only half a 3 lb can per berry type? I use Wyeast smack packs in a starter with a magnetic stir plate and oxygen prior to adding the yeast already, so I think I have the ability to create a high gravity ale. I just don't want to waste 5 gallons of beer because my venture into the unknown went bad.
I'm up for comments and suggestions.
Thanks in advance!