Which innovative sustainable packaging technique first gained widespread adoption in the premium chocolate industry around 2015-2016 before spreading to other food categories?

Sustainable packaging has become a major focus in the food industry as consumers grow more environmentally conscious. Companies are innovating rapidly to reduce waste while maintaining food safety and quality. This trivia question explores a significant milestone in the evolution of eco-friendly food packaging that changed how certain products are presented on retail shelves. Test your knowledge about this packaging innovation that has saved thousands of tons of plastic waste annually.

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Plant-based plastic wrapping made from corn starch
Compostable origami-style folded paperboard boxes that eliminated plastic windows
Edible rice paper wrappers for individual chocolate pieces
Mushroom mycelium foam inserts to replace plastic trays