Most helpful customer reviews

32 of 34 people found the following review helpful.
Poor design
By CFB
I have always used pyrex glass measuring cups, so when my old one-cup cup broke I wanted to replace it. I'm very disappointed with the design of the new cup. The cup itself will probably hold two cups of liquid. It only has markings for up to one cup. The cup is very short and wide. This makes the markings so close together they are hard to read and hard to pour the precise of liquid I need. I bought another one that I like. I can't imagine why Pyrex made this cup like this. I would have never believed I would review a measuring cup, but this one was so bad I decided to.

68 of 80 people found the following review helpful.
NOT 'Pyrex' anymore
By Christopher D'Amico
Pyrex is only a trade name ONLY now, licensed out to World Kitchen. It is NOT the original invention from 1915 that we all remember. It is NOT Pyrex BOROSILICATE glass anymore (after 1998). It is NOT safe to plunge into ice cold water from boiling oven anymore. It's also heavier because it's NOT PYREX anymore! After 1998, when Corning Glass stopped making Pyrex. (Think fiberoptics and bankruptcy, etc.) They sold off their 'household' glassmaking and it reformed as World Kitchen. PYREX is borosilicate glass and very resistant to wear and chip and cracking due to exposure to heat or quick changes in temperature. This is why Pyrex and Kimax and other borosilicate glasses are used for chemistry glassware. (Timex was to watches as these were to chemlabware! Takes a lickin' and keeps on tickin'!) Corning has licensed the name of 'Pyrex' to World Kitchen, but nothing else about it is 'corning glass'. (As an aside - Corning made/makes great glass - of all kinds. A world-beater in their day. Management screwed them over going down the wrong economic road. Do check out their lovely glass museum in Corning, NY!) NOW, World Kitchen makes their 'pyrex' measuring cups out of ordinary soda-lime glass (kitchen drinking glass type). This is NOT safe to expose to heat changes!!!! (Think wear safety goggles - like you WERE working in a CHEM LAB!) I suspect that soda-lime glass is denser than borosilicate, but the actual measure wall thickness may be different now than before, and, thus, this accounts for some of the weight difference. If you want my opinion - find 'vintage' Pyrex Measuring Cups somehow and they will last multiple lifetimes. I have one of my mom's and she has two of her mom's measures. My new ones cannot hold a candle to the old ones (30 to 60 years old) and aren't worth a tinker's damn. Happy times in the kitchen!

16 of 16 people found the following review helpful.
1-cup or so
By jeffnick
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.