Thought I would share my catastrophic failure of my "Big Mouth Bubbler" carboy. I'll point out that this is the first failure I've ever experienced in 25 years of brewing beer. My attention to safety and sanitation is on par with most everyone else here and this failure happened during it being simply lifted from the floor using the recommended "Big Mouth Harness". No temperature shock, bumping into anything, just lifting. It blew out a baseball size hole out the bottom after being lifted about two inches from the ground, and luckily no injuries. After dealing with the epic mess in my kitchen, which by the way is carpeted ( weird, I know, but I purchased it that way and haven't gotten around to changing it (until now)) I decided to examine the carboy which to my disbelieve was as thin as 0.025"...... and this was on the bottom radius ! As a reference, the dime pictured is more than twice as thick at 0.054". I then laid it on it's side and noticed the drastic differences in thickness of the entire bottom. As if it was laid on it's side while still in a very molten state.
I will point out that the folks behind these carboys, Northern Brewer, where great about replacing the carboy and ingredients that where inside. They also said that the carboys are indeed made in China, but went on to say that they had people there on-sight and are in complete control of the manufacturing process. I was also told that these bottles have to be "hand-blown" as an explanation of the inconsistencies in thickness. Not sure how to interpret all of that, but it didn't leave me feeling very warm and fuzzy about the other Big Mouth Bubbler I have or the one they replaced......