of energy drinks and beers.
This one got the better of me, and I took a can opener to
the beer can. That 'rock' jiggling in the bottom of the empty
can is actually a plastic bubble with a small hole in it. It is
there to manage the bubbliness of the product, which goes
down when the can is openend.
Now that is dedication!
https://www.quora.com/What-is-the-purpose-of-the-little-ball-inside-of-Guinness-cans
* * *
Blistering!
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