The days of spending the first few minutes of your lunch break trying to peel the cling film off your sandwiches may finally be over.
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A group of US scientists have developed an edible cling film made from milk protein, and believe it could be on the shelves within the next three years.
While edible packaging is already on the market, the ones available at the moment are made from starch, which allows oxygen to seep through.The new cling film is said to be up to 500 times more effective than current products (typically made from oil) at keeping oxygen away from food.It’s also made from casein (a protein found in milk), meaning it will be both biodegradable and, after flavouring is added, edible too.
Lead researcher Dr Peggy Tomasula from the United States Department of Agriculture said, “The protein-based films are powerful oxygen blockers that help prevent food spoilage.”When used in packaging, they could prevent food waste during distribution along the food chain.”