Thanks for the tip. I'll probably just let this go under an airlock (or maybe a silicone stopper if I can find one that fits my jug) for 6-12 months then bottle. I've been slowly building up a stock of bottles from highly-carbonated beers (things like German hefe's, Orval, etc.). I think I'd be comfortable bottling in them once the beer gets below the 1.018-1.020 range.