Which packaging innovation, first widely adopted in the 1950s, revolutionized retail by enabling self-service shopping and transforming how products were preserved and marketed?

Throughout history, packaging innovations have revolutionized how products are preserved, marketed, and sold. One particular packaging breakthrough transformed the retail landscape so dramatically that it created entirely new business models and changed consumer behavior forever. Test your knowledge about this game-changing packaging innovation from the mid-20th century that made self-service retail possible and sparked a revolution in how products were sold.

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Vacuum-sealed tin cans
Cellophane wrapping
Aerosol spray containers
Polyethylene plastic packaging