Bottle your beer in style and impress your friends with these cold-activated crown caps as they change color from white to blue showing the words "READY TO DRINK" and a beer glass when the temperature changes. Crowns start to change to blue at around 46°F and at 41°F and below they are at their maximum blue color indication. Features an oxygen absorbing lining to help prevent staling during mid to long term storage.
- Cold activated color change crown cap
- Standard size - 27mm
- Oxygen barrier liner
- 144 Count
Take the guesswork out of chilling your home-brew with these unique, cold-activated crown caps.