Which revolutionary packaging invention was first commercially introduced in 1950 by the Continental Can Company, dramatically changing how products were sold in retail?

Packaging design has evolved dramatically over the decades, with certain innovations completely transforming how products are sold, preserved, and consumed. One particular packaging invention from the mid-20th century revolutionized the retail landscape by making products more portable, extending shelf life, and creating new marketing opportunities. This invention quickly became ubiquitous across multiple industries and remains essential to this day. Test your knowledge about this groundbreaking packaging innovation!

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Aerosol spray can
Resealable zip-top plastic bag
Tetrapak aseptic carton
Blister packaging