Finnish dairy producer Valio has become the first company in the world to sell products to consumers in carton packaging made entirely from plant-based materials. Consumers are able to buy these packages at retail shops in Finland starting this week. Tetra Rex Bio-based is manufactured solely from a combination of plastics derived from plants and paperboard. It marks a world first, and signals an important milestone in Tetra Pak’s long-stated commitment to drive ever-stronger environmental pe...