Which 1960s packaging innovation was initially rejected by consumers as 'unnatural' but later revolutionized beverage distribution and is now used for over 70% of soft drinks worldwide?

The history of product packaging reveals fascinating insights into technological innovation, social changes, and marketing evolution. Throughout history, packaging has transformed from simple protective coverings to sophisticated marketing tools. This poll explores a pivotal moment in packaging history that revolutionized consumer products and retail strategies, creating lasting impacts on brand recognition and consumer behavior that we still see today.

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The aluminum pull-tab can
The plastic PET bottle
The TetraPak carton
The twist-off metal cap