Before it became a household name, Tupperware was an experiment in chemistry—and culture. Earl Tupper, a meticulous New England inventor with a farmer’s grit and a chemist’s obsession, purified wartime polyethylene into a revolutionary plastic. But it took the sales genius of Brownie Wise to show the world how to use it. Together, they didn’t just transform food storage. They reshaped American kitchens, created a new model for women’s entrepreneurship, and left behind a legacy that was sealed shut—until now. Topics Covered: • Earl Tupper’s early life on a New Hampshire farm • His invention of “Poly-T” from discarded wartime polyethylene • The engineering breakthrough of the Tupper Seal • Brownie Wise and the invention of the Tupperware Party • Direct sales, suburban domesticity, and postwar culture • Tupper’s retreat, renunciation of citizenship, and philosophical turn • The enduring cultural and linguistic legacy of “Tupperware”