It could mean an end to the unpleasant kitchen ritual of having to smell chicken legs, pork chops or pieces of fish to see if they are spoiled.

There have been several scandals involving the sale of rotten meat. Customers themselves shorten the shelf-life of many meat and fish products by not storing them properly.

Now experts at the Fraunhofer Research Institution for Modular Solid State Technologies in Munich have developed a plastic film which can be incorporated into packaging.

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