Which packaging innovation was initially rejected by retailers but went on to save an estimated 1 billion gallons of food waste annually after its introduction in the 1990s?

In the world of retail, packaging innovations have dramatically transformed how products are preserved, marketed, and consumed. From extending shelf life to creating iconic brand experiences, clever packaging solutions represent some of the most impactful inventions in consumer goods history. This trivia question explores a groundbreaking packaging technology that revolutionized an entire industry and changed consumer habits forever.

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Resealable zip-lock technology for cheese packaging
Vacuum-sealed coffee bags with one-way degassing valves
Tetra Pak's aseptic carton packaging system
Modified atmosphere packaging (MAP) for fresh produce