How is a Pyrex Measuring Cup made? - BrandmadeTV 

From the first light bulbs to space shuttle window to cooking Crack on a stove top. Very versatile lol

Something that surprised me about the Pyrex measuring cups is that they aren't as forgiving of cold, as they are of heat. Several years ago, I was scheduled to be out of town for a couple of days. PG&E, our gas-electric utility company, advised our neighborhood that the power would be cut for several hours, while I was to be away. I had plenty of notice. I put a few containers of water in my freezer, to build up an ice "preserve," for the food that was there. Knowing that water expands, as it freezes, I did NOT put lids on any of the containers. Overall, it worked. When I returned home, the power had been restored, and my food preserved. However, the Pyrex measuring cup was a series of cracks, under the pressure of expanding ice ... even though it was OPEN at the top. A Mason jar that I had used, was intact. Evidently, Pyrex can take the heat, but they don't do well with cold.

Worked at Corning for years, glad I quit before World Kitchen bought it and ruined the quality of a solid product!

I have to by myself a Pyrex measuring cup to add to my collection and take good care of it. I didn't know how they was made, but that is a great video on how it is done.

Literally just watching this so I can write an "OMG" phrase for my character who's a measuring cup. I have determined that he will say "Oh my Furnace." Thank you for your assistance.

Unfortunately Pyrex is just a Brand in the USA now and it's not the strong broncosilate glass, now it's just soda lime glass.

When Pyrex breaks(hard to do) it is the sharpest glass in the world. It is a great product.

Pyrex users have reported their Pyrex baking pans and other Pyrex glassware exploding or shattering during use. Old Pyrex used to be made of lab glass, a much more durable and heat tolerant mix called borosilicate glass. Borosilicate glass can handle the big differences in heat without cracking or exploding. Soda lime glass, which is what most glassware is made from...like a water glass you might use....is cheaper to make and is what Pyrex is made from today. It doesn't do well when you take a hot Pyrex vessel out of the oven and place it on a cold surface. Could easily crack or explode.

Reading from the top is a great idea.

I just bought one I love pyrex

i would prefer a measuring cup with readings either permanently etched or molded on to the glass surface

No other cooking container has prominent advertising on it. Pots have it hidden on the bottom. Pan lids have the logo as a relief without color. Other measuring cups also have the units as clear surface features. And a Pyrex cup is relatively pricy.

0:50 I know this maneuver all too well. Might need to upgrade to that new design...

Why aren't the read from above measuring cups available anymore? They're not on Pyrex's website! :(

what do you call this kind of production process?

Yeah I was boiling water out a pyrex using a torch and the glass busted and but also was some liquid metal that was formed some reason..very confusing 🤔

Needs more boronsilica

they need to go back and make the coleman lantern globes.

is it soda glass or Borosilicate???

"gobs"... very technical.

You can see in the lineup beginning at 1:40, the point when they stopped using real borosilicate glass, where the tint in the glass goes from a yellow to a blue. It's trash, and not actual pyrex

The "read from above" concept is bogus. When you use an accurate measuring cup or graduate, you read the volume at the meniscus looking from the side -- at the level of the liquid -- like you were supposed to do in high school chemistry.

Borosilicate glass was first made by German chemist and glass technologist Otto Schott, founder of Schott AG in 1893, 22 years before Corning produced the Pyrex brand. Soooo the Germans invented it then the Americans took the credit for it this seems familiar.

wait fucking CHARLEROI? I didn't know pyrex was made that close to me wtf.

But the red paint wears off from putting them in the dishwasher after a few years.

Imagine the gas bill.

You looking for any press operators if you are give me a holler I got about 27 years

The new ones suck in North America. The old ones used borosilicate glass. The new ones use lime glass in North America. It’s why the new ones are much more prone to crack. I like the design of the new ones with handles that nest. But the fragility sucks.

Nothing else measures up.

....and we don't make them from actual Pyrex glass any longer!

my cup was pretending to be more than a piece of glass

I don’t like the new look. I’ll stick with the old version

Pirex brand use to be good now it is garbage soda lime glass. the printed labels ware off after a year or so and they are easily thermal shocked and shatter, Pirex has ruined so much food this way it is now forbidden from my kitchen

Just a Rip off from German Jenaer Glas....

WARNING!! pyrex and PYREX is not the same glass, the pyrex is unfortunately NOT the quality they got known for but a significant lower quality and durability. The original, the one that make it stand out from the rest, is PYREX and is what you have to look out for. Do not buy pyrex, but only PYREX.

Do you actually believe this guy ? He reminds me of a person who visits a manufacturing plant to tell it's employees that they are all fired and they are shutting down the plant. They are moving the factory operations to China.