Which food packaging innovation was initially marketed as the 'Flavor Seal' in the 1960s before becoming an industry standard that revolutionized its category?

Packaging design has dramatically transformed how we preserve, transport, and consume food products. Some innovations have been so significant that they've completely changed industry standards and consumer behavior. This poll tests your knowledge about a pivotal moment in food packaging history that revolutionized an entire food category and created new consumption patterns worldwide.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The Pringles canister (stacked potato crisps)
The resealable cereal box liner
The pull-tab aluminum beverage can
The squeezable ketchup bottle