Which 1960s packaging innovation revolutionized food preservation and distribution, described by marketing historians as 'the greatest innovation in food preservation since canning'?

In the history of retail and consumer products, certain packaging innovations revolutionized how products were sold, preserved, and consumed. Some designs were so groundbreaking they fundamentally changed entire industries and consumer behaviors. This trivia question explores one of the most significant packaging innovations of the 20th century that transformed product distribution and freshness preservation. Can you identify this game-changing packaging development?

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The aluminum beverage can with pull-tab opener
Aseptic packaging (Tetra Pak's sterile cardboard cartons)
Polyethylene shrink wrap film for palletized goods
Aerosol spray technology for food products