Bests & Worsts Reviews from Amazon

This is a great cup, except for one little thing: the measurements are wrong! 1 cup, according to this measuring cup, is actually closer to 7/8 cup. I have compared it to older PYREX measuring cups (2 cup and 4 cup sizes), as well as to a variety of other measuring cups. The other measuring cups are all consistent, both Pyrex and non-Pyrex. But the measurements provided by this 1-cup Pyrex cup are consistently too low. What is most astonishing to me is that none of the other reviewers has remarked about this. I hope that others will now test their own cups - it would be nice to know whether perhaps Pyrex's 1-cup measuring cups in general are okay, and I happened to end up with the lone defective unit. My measuring technique: I use the bottom of the meniscus (the curve in the surface of the liquid), which is how I was taught to do it in Chemistry and Biology laboratories. I have also compared the weights of 1 cup of room temperature water, as determined on a digital cooking scale, and found the weight of this cup's contents to be less than that of a cup as measured by other measuring cups.