I bottle from the keg, and do it as I need it. I'll just sanitize a case in the dishwasher, put a piece of foil on the top, then throw in the freezer. The freezer is mainly to cut down on foam when bottling from the keg so I don't even think that is necessary. As long as you cover the tops so nothing can fall in, Papazian says you can store for long periods of time.