We need an arguement settled here at work. One of the guys likes drinking Yoohoo and he noticed when the can comes out of the machine it can be slightly squeezed. However, on shaking it up the can becomes firm like it was carbonated. The drink isn’t carbonated so why does this happen?
My theory is disolved gas is escaping when shaken up and while not enough to make the can explode it is enough to make it more firm. Anyone with a real answer?
Also, shaking it causes friction which increases the temperature of the liquid inside, making it expand slightly. You could test this by getting a can, not shaking it, and just let it warm up. If the can stiffens, you know it’s from the expansion.
Actually, it’s probably a combination of this and what you suggested, since warming a liquid does cause some of the suspended gas to be released.
Dunno…yahoo in a can sucks.
YMMV of course.
I meant yoohoo of course.
Not that yahoo doesn’t suck.