Only on the ?CBS This Morning? podcast, the head chef and co-owner of Noma Rene Redzepi talks with CBS News producer Erin Lyall about the beauty of fermentation, opening their new restaurant and the pressure of being one of the top restaurants in the world. Redzepi is encouraging people to try fermentation at home with his new cookbook, "The Noma Guide to Fermentation." He also discusses the seasonality of the Copenhagen restaurant, how social media has effected the restaurant business and his next project.