Which packaging innovation was specifically developed to solve the problem of tomato ketchup 'watering out' (separating into liquid and solids) while improving dispensing control?

Product packaging in the food industry isn't just about keeping contents safe—it's a fascinating intersection of innovation, marketing, and sustainability. From extending shelf life to creating memorable unboxing experiences, food packaging has evolved dramatically over the decades. This trivia question focuses on a revolutionary packaging development that changed how we consume a particular food category. Test your knowledge about the innovations behind the products we use every day!

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The inverted squeeze bottle with silicon valve
The aluminum toothpaste-style tube with metal cap
The glass bottle with narrow neck design
The aseptic carton package with screw cap