I recently kegged a 9% Belgian strong dark ale. The beer is really dry and somewhat lacking in depth, and I thought adding some fruit might give it some sweetness and complexity. I put 4 oz. of finely chopped prunes into a muslin bag, soaked in boiling water, then put the bag plus the water into the keg. Has anyone tried this approach before? Does it work? Is 4 oz. in 5 gallons enough? Thanks much.