I just used a 2.5" hose clamp with some styrofoam packing around it to keep it from sliding too much. Had to modify the hose clamp a bit but I'm optimistic in this very simple solution. Will update once I put it into action.
I pasturize all my fruit additions by holding a puree between 145 and 155 for 10 minutes and then racking the beer on top (with a good CO2 purge afterwards to keep any aceterbacter from being able to establish themselves on the floating fruit). From what I've ready as long as you keep it less...