Which packaging innovation, first commercially introduced in 1964, revolutionized retail by allowing milk and juices to be sold in lightweight containers with extended shelf life without refrigeration?

In the world of retail and product packaging, some innovations completely transform how consumers interact with everyday items. One particular packaging breakthrough from the mid-20th century revolutionized how liquids were stored and sold, changing shopping patterns and product preservation forever. Test your knowledge of this pivotal packaging innovation that might seem ordinary today but was groundbreaking when introduced.

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Tetra Pak aseptic carton packaging
PET plastic bottles
Vacuum-sealed aluminum cans
Biodegradable corn-based containers