Does object like can, bottle, cup effect how much we drink?

Question

Is it just me or does cup, bottle, can, straws effect how much we drink. For example, I drink more if the pop is in a can and has a straw but I drink lesser if its in a cup.

Answer 1

Yes it does. Your only real warning sign here is with alcohol. Booze, wine, or Saki from a glass or cup will get consumed in greater quantity. For the straw effect, it is psychological. By using a straw you are restricting your intake amount and the brain tends to signal you to - excuse me - "suck more".