No More Expiration Dates: MIT Is Developing Sensors To Detect When Food Is Going Bad

Forget dubious dates on containers. These sensors could tell when food is starting to rot and reduce food waste.

One reason the U.S. wastes 40% of all the food it harvests is that we don't have a good handle on the status of that food. As consumers, we rely largely on best before and use by dates that are notoriously conservative, and often flat-out wrong. Actual food decays at variable rates that aren't reflected in that information.

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