Biodegradable coating can be sprayed on food to keep it fresh for 50 per cent longer

There's nothing more annoying than leaving leftovers in the fridge, only to find they've gone off when you go to use them. Researchers from Rutgers School of Public Health have developed a coating that can be sprayed on food – and say it keeps products fresh for 50 per cent longer. Researchers from Rutgers School of Public Health have developed a coating that can be sprayed on food – and say it keeps leftovers fresh for 50 per cent longer Fibres are spun from a heating device that resembles a hair dryer, before being 'shrink-wrapped' over foods including avocados or steaks What is it made of? Once you're ready to eat the food, the coating can be rinsed off with water, and degrades in soil within three days During testing, the researchers found that the coating helped to extend the shelf-life of avocados by 50 per cent The coating can not only help to prevent spoilage, but is also sturdy enough to prevent bruising, according to the team. Once you're ready to eat the food, the coating can simply be rinsed off with water, and degrades in soil within three days.