Pyrex - Wikipedia
Pyrex was first introduced in 1915 as a line of clear, low-thermal-expansion borosilicate glass whose resistance to chemicals, electricity, and heat made it ideal for laboratory glassware and …
What Is the Difference Between the Two Types of Pyrex
Jan 19, 2023 · Learn what Pyrex is made of and the difference between uppercase and lowercase Pyrex to determine what kind of glassware you have for safe handling.
Pyrex | Cookware, Bakeware, Kitchenware | Britannica
Pyrex, (trademark), a type of glass and glassware that is resistant to heat, chemicals, and electricity. It is used to make chemical apparatus, industrial equipment, including piping and …
PYREX vs. pyrex: What's the Difference? - Corning
At its core, Pyrex is glassware and cookware that can resist chemicals, electricity, and heat. It is also shock-resistant and can withstand thermal expansion. As a result, it's an appropriate …
The Science Behind Pyrex Glass
The idea of Pyrex came out of this new approach to recipe development. The original Pyrex glass is known to scientists and artists as a borosilicate, “boro” for short. The main ingredients in the …
The Actual Difference Between PYREX and pyrex - Simply Recipes
Dec 17, 2025 · Corning invented the brand Pyrex in 1915 and made all Pyrex products with borosilicate glass. This type of glass contains a chemical compound called boron trioxide, …
Know the Difference: PYREX vs. pyrex - EatingWell
Nov 25, 2025 · "Pyrex" is the official, trademarked brand name of the popular cookware brand. When the "P" is capitalized and the rest is lowercase, it is simply a proper noun for the company.