In this episode, host Wolfgang Holtkamp meets Ann-Kathrin Briem, who is Environmental Engineer and Life Cycle Assessment Expert at the University of Stuttgart and the Fraunhofer Institute for Building Physics. They talk about sustainability assessment in the area of "mass personalisation" and also "function-optimised biosurfactants", a sustainable alternative to chemically synthesised surfactants. She also gives us an insight into her stay abroad in Canada and her work with students.