What is the difference between BottleKeeper 1.0 and 2.0? Julia Sky November 21, 2017 21:02 Updated Follow Related articles How to insert neoprene in your BottleKeeper? How to insert a beer bottle? What is BottleKeeper? How To Thread the Tethered Cap Which bottles fit in BottleKeeper®? Comments 0 comments Article is closed for comments.