Being developed through the university's Milk Quality Improvement Program, the carton will incorporate both a QR code and a sensor.
The code will contain information such as the originating dairy farm, the processing plant, and microbes specific to that farm and plant, which may be present in the milk. The sensor, on the other hand, will record the time that has elapsed since the milk was put in the carton, along with the temperatures at which the carton has been stored.
Using an app on their smartphone, customers and retailers will scan both the QR code and the sensor, obtaining a precise expiration date for the milk. Not only would this keep consumers from wasting food and money by discarding perfectly-good milk, but it would also allow retailers to move older milk off their shelves by lowering its price accordingly.