protank 2 mini question

[rileypiper]

Wow, That is not something I would expect. Doubt it is the juice since glass wouldnt react to the juice. Guess this is the "lucky winner"... lol

I know, right? I believed all along that it was the air bubble. I was really just curious if anyone had seen this before.

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[quigonmat]

I like to cook and once had a pyrex dish literally blow up on me when I put it down on a cold metal countertop. However, I have never seen anything like that. It must be a defect in manufacturing or else a well aimed bb gun...