Growler randomly explodes. How?

Not enough time. Most likely an imperfection in the glass. The growler will have 2.5 volumes or more (depending on the beer style) of CO2 per volume of beer. That combined with defective growler might do it.

 

No way. It was just a defect in the glass.

 

Yeh, I didn't read that part. Some places I know fill them in advance but even then they are selling them out of a cooler.

 

I can't believe you just started this thread. I had a growler explode in my trunk this afternoon. I was driving up to Connecticut from Maryland. It was tucked in the trunk for about 5 hrs. It broke the same way @Zhiguli's did.

 

It is possible. It was in a padded cooler, though. Anyway, it was a porter...so the trunk was malty.

On a positive note...I have an extra cap.

 

Those prices are out of hand.

 

Defect in the bottle called a "Heel check" is the most likely culprit. Heel checks are minuscule cracks in the glass that occurs when the bottom of the mold (The heel) comes into direct contact with the molten glass during blowing. A very common defect that is usually caught at the glass factory, but hey, stuff happens. (I've seen hundreds of thousands of these)

 

Karma

 

INSANE doesn't even begin to describe those prices. You can get a 2L of any Hill Farmstead DIPA for $22 and Tree House Double Shot right now for $20. What the hell are they smoking over there! People actually buy at those prices? Wow!

 

Don't know the brewery, but this made me laugh

 

Sabotage.

 

Last year there was a consolidation in the global beer glass market. No shit, really. The bomber quality went down, I bet amber growlers are crappy too.

 

Not even close - would take days especially if the beer was cold.

Most likely, the cold beer caused a contraction in the material, and this caused a flaw in the glass to fracture as the slight pressure from the carbed beer pushed out.

 

Sorry but that $2 for the extra 3.6 oz. just kills me. On to the growler. I did some research on cutting glass and such when building a beer chandelier for my daughter and one thing that can do it is extreme heat and then introducing extreme cold. I now know I need to be careful as I carry around my glass growlers in my car during the summer. So if the bottom part of the growler where the glass is really thick had heated up and then the cold beer hits that part first, it could have caused a stress crack which when the pressure built up in the growler, it let go. I guess I will be taking my growlers out of the car tomorrow or let them really cool off before putting beer in them. Sucks that that happened.

 

Wow and I thought Noble was bad with their pricing on specialty growler fills.

 

What others have said. Probably a combination of heat, a glass defect, heat of summer and possibly age of glass could contribute to it as well. ate And then also the added whammy of being under carbonation and inside a moving vehicle which is sending the carbonation out of solution.

 

You probably had defective glass. Jostling the growler around increased the pressure and it went boom.

 

OP's growler break looks way too clean to me to be a result of pressure. I'm supporting a glass defect the way it seems like a piece just came off.

Everyone buying beer from them is part of the problem of exorbitant prices in craft beer. Not all expensive beer is over priced but a lot of it clearly is.