Which revolutionary product packaging innovation from the 1960s was initially rejected by consumers but later transformed the beverage industry and became one of history's most successful packaging formats?

Product packaging has evolved dramatically throughout history, transforming not just how products are protected but also how they're marketed. Some innovations in packaging have been so revolutionary that they fundamentally changed consumer behavior and industry standards. This trivia question explores one of the most significant packaging breakthroughs that shaped retail history and continues to influence packaging design today.

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The aluminum pull-tab beverage can
The plastic squeeze bottle for condiments
The tetrapak aseptic carton
The child-proof prescription bottle