Recent academic studies reveal that whey, the milk protein by-product of cheese production, acts as a good moisture-barrier film with acceptable mechanical integrity.

In addition, the use of whey coating on plastic films can improve the recyclability and reuse of the plastic layer by removing the whey protein chemically or enzymatically.

This present project will build on past research in order to arrive at a commercially feasible technique for developing whey coated plastic films, without compromising the oxygen or moisture barrier performance of conventional plastic films, while increasing their recyclability.