This is a little ways off but i just started two batches of traditional mead and two batches of a hybrid joe's recipe. one of my joes has foamed up into the bubbler, no big deal just replaced it with a clean one. i have read about this happening with melomels. i plan on splitting up my batches of traditional mead into a bunch of one gallon carboys to experiment with different fruit recipes. so my question is after primary fermentation when i rack onto the fruit i know the fermentation will start back up a little but will it result in massive amounts of foam like with my joes recipe. just wondering because i have read that after fermentation is complete you want as little o2 at the carboy as possible, so i was hoping to eliminate space by topping each carboy with fruit. but i also don't want another foam explosion. can someone shed some light on this for me.