Those ever-prevalent labels on perishable packaged foods are often used as a barometer to determine when to throw out the food product. As it turns out, these labels are only advisory and just define the last date recommended for the use of the product while at peak quality.
However, approximately 60% of household food waste arises from products "not used in time," according to UK's Waste and Resources Action Program (WRAP).
The sell-by date is a cautious estimate at best, but other than the standby nose test, how can one know if the food is still safe to eat or not? Well, university researchers in Europe hope a new plastic sensor, together with packaging, can help to solve this issue....