We successfully completed the SAT of a custom-designed production scale fermenter train, including CIP system. The Industrial cGMP compliant production train comprises of 4 seed fermenters (150L), ergonomically arranged around 2 central production scale fermenters (2.800L and 7.000L). The entire fermenter train is connected to a CIP system located in the neighboring room. Fermentation and CIP operation is fully automatic and controlled from a central PCS, with HMI’s in the clean room and the