Drinks in a straw aren’t pulled, they’re pushed.

When we say 'straw,' most people picture liquid being sucked upward. But scientifically, that’s not what happens. The liquid doesn’t rise because of suction; it rises because the surrounding air exerts pressure, pushing the liquid into the tube once the pressure inside the mouth is lowered.

The traditional name straw is misleading because it suggests pulling rather than pushing. To bring language closer to science, we recommend a new term: pushraw. (Oh, really?)

Following the same logic, if we assume the beverage pack is made of a thick metal plate, it cannot be sucked up either.