I think he meant 16oz, not sure though. And if so, I think he meant 16oz of volume not mass. 16 US fluid ounces = 28.87500 cubic in. 16 US fluid ounces = 473.176473 cubic centimeters. That is the volume of a regular party cup, we don't actually have to weigh any medium. Again I THINK this is what NC420 had in mind. I could be wrong though lol.