Eat your food's packaging, don't bin it

Scientists are developing an edible form of packaging which they hope will preserve food more effectively and more sustainably than plastic film, helping to cut both food and plastic waste.

The packaging film is made of a milk protein called casein, scientists from the US Department of Agriculture said at a meeting of the American Chemical Society.

The milk-based packaging does not currently have much taste, but flavors could be added to it, as could vitamins, probiotics and other nutrients to make it nutritious, they say.