Enzymes (for example, those derived from bacteria) can convert a wide variety of starting materials into a wealth of target products. So-called white biotechnology aims at harnessing this ability to produce chemicals in an eco-friendly way. Since it sometimes takes several catalysts and steps to produce the desired product, Dirk Tischler's team designed a cascade for flow catalysis, in cooperation with groups from Delft University of Technology, the Technical University Bergakademie Freiberg and the Silesian University of Technology.