Researchers at the Istituto Italiano di Tecnologia in Italy have designed a food-grade device from edible materials that indicates whether a frozen product has been thawed and refrozen.

The researchers’ work, titled “Self-Powered Edible Defrosting Sensor” was published in ACS Sensors, by Ivan Ilic, Mario Caironi, and their colleagues.

Continue Reading A new edible sensor shows if frozen products have previously thawed