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After closely studying the skin of the fruit, researchers observed that its blue color is instead created by a layer of surface wax made up of miniature structures that scatter blue and UV light.
Get latest articles and stories on Science at LatestLY. Researchers at the University of Bristol have discovered that blueberries' blue colour comes from tiny exterior structures in their wax coating. Science News | Researchers Explain the Blue Color of Blueberries.
Blueberries appear blue without a blue pigment. Here's how.
Blueberries are not actually blue and only appear to have a navy hue thanks to a trick of the light, a study has found.
Nanostructures in a blueberry’s waxy coating make it look blue, despite having dark red pigments — and no blue ones — in its skin, a new study reports.