Which of the following smart packaging technologies is currently being used by major food brands to indicate the actual freshness of perishable products rather than just relying on printed expiration dates?

The food industry is experiencing a major transformation in how products are packaged and presented to consumers. Smart packaging technologies are changing how we interact with food products, monitor freshness, and reduce waste. This poll tests your knowledge about recent innovations in food packaging that are reshaping consumer shopping experiences and addressing sustainability concerns.

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Time-temperature indicators (TTIs) that change color based on how long and at what temperatures a product has been stored
RFID chips that allow consumers to scan products with their phones to see a virtual 3D model of the food inside
Microchips embedded in packaging that automatically alert your smart refrigerator when food is about to expire
Holographic QR codes that project nutritional information as an augmented reality display