Expiration dates are tricky. When accurate, they still fail to consider the fish or meat in their environments. After all, meat sitting on a counter rots at a different rate than meat in a freezer. Why not test the individual meat at hand? This is where the meat film sensor comes in.
Developed by researchers of Fraunhofer Research Institution for Modular Solid State Technologies in Munich, this sensor film can be integrated into food packaging. The film’s colors will reflect the freshness of the meat product based on biogenic amines. Amines are produced when foods decay. So if the animes are released within the packaging, the dye in the film reacts and the film color changes from yellow to blue, indicating signs of rotting.
Of course, there is no indication of price of this little strip. But if it is cheap enough, it doesn’t seem like such a bad investment for cooks in the home and at restaurants.