Toward a fully edible sensor showing if frozen food has previously thawed

ScienceDaily
Oct 12, 2022, 2:32 pm91 pts
When you're standing in the frozen food aisle, it's nearly impossible to know whether that Salisbury steak has thawed and refrozen -- a process with potentially harmful consequences. So, researchers have now designed a food-grade device from edible materials, including table salt, red cabbage and beeswax, that…

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