You know that feeling when you’re trying to be all eco-great and then go to the store and your heart drops because the organic broccoli is resting in a Styrofoam tray, wrapped in plastic? Well. Here’s something that can help. A woman-led team of researchers have discovered a new way to make clear food packaging from casein, a milk protein. It will be 100% biodegradable, edible, better at holding off spoilage, and, unlike its petroleum-based counterpart, will not be around for your great-great-great-great-great grandchildren to deal with.

They’re also thinking that the substance could be sprayed on cereal to keep it crunchy longer. A win for everyone, I’d say!