Which of these sustainable food packaging innovations was introduced by UK supermarket Waitrose in 2019 and has since been adopted by several major food retailers worldwide?

Sustainable packaging has become a major focus in the food industry as companies work to reduce environmental impact while maintaining food safety and quality. This trivia question tests your knowledge about innovative packaging solutions that are transforming how food products reach consumers. Can you identify the groundbreaking sustainable packaging innovation that's making waves in the food retail sector?

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Refillable container stations where customers bring their own containers to purchase food products like pasta, grains, and coffee
Edible packaging made from seaweed extract that dissolves when cooked with the food product
Mushroom-based biodegradable foam packaging that replaces styrofoam for meat products
Solar-powered smart packaging that extends shelf life by regulating internal temperature