I was wondering and im sure its possible but, if i were to make a merlot or other similar wine and add a blackberry fpac at the end would that yield a wine similar to arbor mists blackberry merlot. Believe me its for swmbo and the mother in law. And if this sounds about right how big of an fpac would flavor 3 gallons of this concoction? I know it is to taste but i would be looking for a ball park estimate. Or if anyone has done this before, i used the search feature and it seems like i have to wade through pages of stuff to find something even similar to what im looking for. Thanks bob