In South Korea, smart containers with RFID technology have transformed the way citizens manage their food waste. These devices measure waste by the gram and display the weight on a digital screen, forcing users to be aware of how much they are wasting.

Min Geum-nan, a resident of the Gangdong district in Seoul, describes how the routine of scanning her card, opening the container, and seeing the exact weight of the leftovers has changed her habits: “You have no choice but to pay attention because you know exactly what you are wasting.

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