why can't we use Starbucks tumbler for sodas?

@chiyosan (30181)
Philippines
April 30, 2011 9:09am CST
I an currently fixing all the things brought home from my office as you all know that i have resigned from my work and that my boss have given of a Starbucks tumbler. I had a total of 4. Starbucks of different types and well i admit i never read the label inside. It is just now as well that i have read not to use carbonated drinks with it. But i have used it with that! Well, if i do, anyway i do not close the lid i make sure the mug has some room to breathe. So why do they warn not to do so? Is it due to the pressure build us of the carbon drinks that when closed might explode? Or there are other reasons? Would you know?
1 person likes this
3 responses
@sedel1027 (17846)
• Cupertino, California
30 Apr 11
Its probably like all "non spill" cup. When the pressure from the carbonation build up, they leak by pushing the safety latch open. It would be like putting soda in a child leak proof sippy cup.
1 person likes this
@chiyosan (30181)
• Philippines
1 May 11
. i . .
@CTHanum (8233)
• Malaysia
30 Apr 11
HI chiyosan! I think you should ask your boss about that. She/He should know more about his/her thumbler.
@sender621 (14890)
• United States
30 Apr 11
I amsure it would have been a good thought. i think that it is the material that thr tumbler is made of that could cause a problem for soda use. But stil we have to come up with ways to help out our convenience.