Why Do Some Beer Bottles Spontaneously Break on Their Own?

In extremely rare circumstances, there have been reports that some beer bottles have spontaneously broken on their own. Jay Curtis told Inside Edition his leg was severely lacerated by a beer bottle that suddenly burst in a case of beer he was carrying into his house “It was blood everywhere and it ran down my leg, which scared me,” Curtis said. He's not alone. Gonzalo Luis-Morales and Latchman Ramnanan said they were partially blinded when beer bottles suddenly burst in their faces.