So I intend on splitting a small 2.5gallon batch of oatmeal stout and racking half of it on top of some frozen blueberries and also adding blueberry flavoring. The question is with the blueberries should I putthem in a pan and add a lil water and boil them a little bit? First time racking onto fruit. Only have about 12oz of blueberries to use might use less. Just want to see how I will like a blueberry stout vs just my oatmeal stout.