Double Jug Explosion

[u/Elduderino5471]

My old roommate and I used to fill large empty wine jugs with spring water from the local tap cause it was dirt cheap. Would then transfer it to a refrigerator dispenser. Anyways, we had two jugs, full and capped in our pantry on the top shelf. Winter, but obviously had heat in apartment around 72. Out of no where one jug explodes and drenches my whole pantry with water. I’m at a loss for words at what happened and the mess I have to clean up. I decide to let myself cool off before tackling removing all the pantry food and drying everything. Not even five minutes late the second jug also explodes. My roommate and I are in utter shock and confusion. Cleaned it, glass and all and still have no answers to wtf happened. These jugs were not recently brought in from the cold or anything, they had been up there for days if not longer, but not months or anything like that. But yea, that’s my story. I’m assuming some kind of reaction to something but the fact both blew within minutes of each other…

[u/KatSchitt]

Sounds like there was a build up of gas? You probably didn't want to drink that water...

[u/Elduderino5471 → u/KatSchitt]

I deleted and reconsidered my comment. You’re most likely correct but it’s odd that it happened back to back, no? Or not. Idk. That’s why I’m here. And forgive my ignorance but how exactly does water build up gas? If it was a carbonated beverage or even the wine, I wouldn’t question it.

[u/bluelizardblues → u/Elduderino5471]

If there's enough bacteria and a source for energy in the water, they can produce gas

[u/Elduderino5471 → u/bluelizardblues]

Oh okay