Which packaging innovation uses thermochromic ink that changes color to indicate when a beverage has reached its optimal drinking temperature?

Packaging is no longer just a container - it's becoming an intelligent part of the food experience. Recent innovations in food packaging have transformed how consumers interact with products, preserve freshness, and reduce waste. This poll tests your knowledge about one groundbreaking packaging technology that's changing how we experience certain foods. Think about recent innovations you've seen on store shelves!

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Coors Light's Cold Certified cans with mountains that turn blue when properly chilled
Coca-Cola's Share a Feeling cans that reveal emotional words when cold
Lipton's Perfect Brew tea bags with strips that change from red to green at ideal steeping temperature
Starbucks' Ready-to-Drink bottles with temperature-sensitive logos that fade when no longer fresh