Pyrex tempered glass bakeware, mixing bowls, and food storage are manufactured in Charleroi, Pennsylvania, where the company has pressed American glass for decades. The tempered soda-lime formula stands up to oven, microwave, freezer, and dishwasher transitions, and the clear glass body lets cooks see browning, layers, and doneness without cracking a lid. Pyrex has been a kitchen fixture in American homes since 1915.
A nesting set of 1-quart, 1.5-quart, and 2.5-quart glass mixing bowls that stacks compactly in a cabinet and covers everything from whisking dressings to kneading small batches of dough. Tempered glass handles a hand mixer without scarring, goes into the microwave for melting butter, and cleans up in the dishwasher. A set that stays in daily rotation for years.
Pyrex was introduced in 1915 by Corning Glass Works as a borosilicate oven-safe glass, and the brand transitioned to tempered soda-lime glass in the 1990s — the current formula produced at the Charleroi, Pennsylvania plant. The brand is now operated by Instant Brands and remains the most recognized name in American glass bakeware and food storage. Charleroi employs American glassworkers, mold operators, and finishers across every shift.
