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Onions are one of the largest consumer products worldwide, but their freshness is hard to perceive from their appearance alone, they could be internally moldy or sprouting. Freshtag is a visual indicator strap that can identify and visualize the freshness of onions. It employs color-coding identification based on the cumulative emissions of ethylene.The design of the Tag blends the visual indicator with the barcode information to help consumers select fresh produce and effectively improve storage management to reduce food waste.
YA CHIEN YANG,