Visualize the shelf life on the packaging bag to remind users to eat food and reduce food waste.
Long description
This product is an environmental protection food packaging bag designed by new technology. His original intention is to avoid food waste and remind us to eat food as soon as possible. It uses the principle that the test paper changes color with the degree of food spoilage to change the mood of the small face on the packaging bag. When a smiling face becomes a devil, food can no longer be eaten.
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