I recently racked a sour beer out of a carboy and into a keg off the fruit I had it sitting on and noticed how much beer I lost to the whole process. This had been aging a year, the last 5 months of it on tart cherries and was fairly painful to see at least a gallon or more go down the drain with all the fruit and such at the bottom of the carboy. I was trying to rack off just the beer with as little fruit matter/yeast/etc as possible.
Is there a way to extract more for next time? I used a siphon and racking cane. I was thinking about either attaching screen or loose cheesecloth to the end of racking can so it could submerge deeper into the carboy but still filter out most of the fruit matter. I worry that would clog off easily though. Then I wondered about simply pouring the carboy out through a coarse screen also lined with cheesecloth or other more fine filtering substance. Would pouring it over a screen/fine filtering cloth (sanitized), down a funnel, and into a keg risk substantial oxidation? I have always racked the beer gently with a siphon but with these beers with a lot of fruit you can sacrifice so much of the beer. A year or longer effort seems cut substantially short on final beer to drink. Thoughts?