1. VTT Technical Research Centre of Finland Ltd Tietotie 2, P.O. Box 1000 Espoo FI‐02044 VTT Finland
2. Chemical Process Engineering, Faculty of Technology University of Oulu P.O. Box 8000 Oulun Yliopisto FI‐90014 Finland
3. Technische Universität Berlin, Chair of Brewing and Beverage Technology Ackerstraße 76 Berlin 13355 Germany