Which innovative feature first allowed smart refrigerators to automatically track food expiration dates without manual input from consumers?

Product innovation in the food industry has accelerated dramatically with IoT integration. Smart refrigerators are now changing how consumers interact with their food, from inventory management to reducing waste. This poll tests your knowledge about a groundbreaking feature that revolutionized the smart refrigerator market and significantly improved consumer food management practices.

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Internal cameras with AI-powered image recognition that identifies food items and estimates remaining shelf life
RFID tag scanning system that reads manufacturer-embedded chips in packaging
Weight-sensitive shelves that measure gradual changes to detect spoilage
Molecular sensors that detect ethylene gas released by ripening produce