Cold Activated Crown Caps with Oxy-Liner 144/bag
These cold activated caps will turn blue when your homebrew is at the perfect drinkable temperature! The color will start to change at 46.4 degrees and they will reach their maxium blue tonality at 41 degrees. These caps are also armed with a oxygen-absorbing liner that keeps your brew fresher longer! These caps will fit standard pry-off bottles, any size (26mm). They will not work with twist-off or Belgian-style bottles.