144 Cold Activated Bottle Caps with Oxygen Barrier
You've seen thermochromatic cans and labels on commercial beers for a while.
Now homebrewers can top their brews with a cap that will turn blue when the beer is cold enough
to drink. Seriously, how cool is that??
These will fit standard crown cap beer bottles. These will not work with twist off bottles or Belgian style bottles. Each package contains 144 bottle caps.