I have 11 gallons of wheat beer I am planning on adding fruit to (2 separate batches, 5.5 gal each), 1 with raspberries and 1 with blackberries. I've searched the internet and i'm looking for any input on amount to add to each? I am planning on going with the Oregon Fruit puree. They come in 3 lb jars, is 1 jar enough or should I grab 2 of each? I was also told to add 1/2 cup of turbinado with the fruit to keep the yeast activity on the fruit to a minimum, has anyone else done this?