Which packaging innovation, first commercially successful in the 1950s, revolutionized retail by allowing consumers to see products before purchase while extending shelf life?

The history of retail packaging tells us much about technological advancement, consumer preferences, and sustainability concerns through different eras. Packaging innovations have dramatically changed how products are preserved, marketed, and consumed over time. This trivia question explores a pivotal moment in retail packaging history that revolutionized the food industry and consumer habits worldwide.

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Cellophane wrapping
Clear polyethylene terephthalate (PET) bottles
Vacuum-sealed glass jars
Transparent plastic clamshell packaging