Which packaging innovation was first introduced by Tetra Pak in 1952 and revolutionized the liquid food industry by eliminating the need for refrigeration in milk distribution?

Packaging innovations have significantly impacted both environmental sustainability and consumer behavior over the decades. Some revolutionary packaging designs have dramatically reduced waste, improved product preservation, or changed how consumers interact with products altogether. This poll tests your knowledge about a groundbreaking packaging innovation that transformed an entire industry segment and influenced consumer habits worldwide.

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Aseptic carton packaging (allowing shelf-stable milk)
Vacuum-sealed aluminum cans for liquids
PET plastic bottles with oxygen barriers
Spray-dried powdered milk packaging with humidity controls