3D-Printed Smart Bottle Cap Could Tell You When Your Food Has Expired

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Stock image by Andrey Ezhov/shutterstock

What if your milk bottle could tell you if your milk is on the turn? No, you’re not hallucinating from drinking milk past its best.

This is the idea behind a new 3D-printed smart cap for liquid storage bottles and food storage containers from researchers at the University of California, Berkeley and National Chiao Tung University in Taiwan.