Our Heritage

Starting in 1915, a wondrous new line of "glass dishes for baking" appeared in the nation's hardware, department and china stores. The idea came from the wife of a Corning Glass Works scientist who was frustrated with her unreliable Guernsey brand casserole dish. Knowing the strength of the railroad signal lantern glass her husband worked with on a daily basis, she implored him to bring home a substitute. After a two-year process to perfect this new consumer product invention, on May 18, 1915, Boston department store Jordan Marsh placed the first PYREX® bakeware order. PYREX glass products are now in an estimated 80% of US homes.