Which food company first introduced the resealable 'Press'n Seal' zipper technology on flexible packaging that became an industry standard?

Product packaging has transformed how we consume food, with innovations constantly changing our relationship with freshness and convenience. One particular packaging breakthrough revolutionized how certain foods maintain freshness after opening. Test your knowledge about this significant food packaging milestone that changed kitchen pantries forever!

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Kraft Foods (1998)
Nabisco (1995)
Frito-Lay (2003)
Freshpak (Nabisco subsidiary, 1986)