"When Pyrex was launched in 1915 as clear glass ovenware, American consumers needed to be persuaded that baking in glass was not only feasible, but provided benefits that baking in metal, iron, and earthenware did not have," Brumagen says. "To aid them in their campaign, Corning Glass Works executives turned to leading home economists to first test the new material in the kitchen and then to promote it to Americans through advertising, cooking columns in magazines, and demonstrations."

Pyrex Utility Baking Dish, made by Corning Glass Works, 1915-1925. Photo 1 of 9 in Classic Cookware a Staple in American Kitchens for 100 Years by Allie Weiss

Classic Cookware a Staple in American Kitchens for 100 Years

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"When Pyrex was launched in 1915 as clear glass ovenware, American consumers needed to be persuaded that baking in glass was not only feasible, but provided benefits that baking in metal, iron, and earthenware did not have," Brumagen says. "To aid them in their campaign, Corning Glass Works executives turned to leading home economists to first test the new material in the kitchen and then to promote it to Americans through advertising, cooking columns in magazines, and demonstrations."

Pyrex Utility Baking Dish, made by Corning Glass Works, 1915-1925.