Lower perceived quality of packaged milk exposed to LED light

24 June 2016

Cornell researchers found exposure to light-emitting diode (LED) sources for even a few hours degrades the perceived quality of milk more so than the microbial content that naturally accumulates over time.
The resulting taste is commonly described as that of cardboard or plastic. Their study determined milk remained at high-quality for two weeks when shielded from LED exposure, and consumers overwhelmingly preferred the older, shielded milk over fresh milk stored in a typical container that had been exposed to LED light for as little as four hours. An article about the research is published in the Journal of Dairy Science (News Item Cornell University, 8 June 2016).
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Click here for the published article (1.2 MB).
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