Breathable cap prevents beer bottles from exploding

How to prevent beer bottles from exploding? Recently, U.S. researchers developed breathable beer caps to solve this problem. Not only that, this breathable beer cap also prevents beer from spoiling.

The researchers first invented a new type of liner for beer caps. When the internal pressure of a beer bottle is close to the ultimate pressure of a beer bottle, the liner can be automatically deflated. Within a safe pressure range, The liner ensures the tightness of the cap, does not allow foreign air to enter the bottle and degrade the beer, and does not allow the carbon dioxide in the beer to leak out and affect the taste. However, when the pressure exceeds the limit and may affect safety, the inner liner will have a small gap under pressure and thus have an automatic venting function.