Karen Lettow, Product Developer, Walter Rau Neusser Öl und Fett AG
"The course as such was very good prepared, presented and informing. The technical information were really good to get a better understanding of the process. I really liked the exercises. It was good to directly use the new information and due to the online version it was also good to have a short interruption of the classical presentation mode. The frequency of exercises was good."