During process development (PD), single-use (SU) bioreactors can streamline cell-culture workflows and reduce risks for contamination and operator errors. But transferring cultures from laboratory- to benchtop- and pilot-scale vessels requires consideration of fundamental bioreactor principles. In October 2021, Ann D’Ambruoso (manager of product applications and marketing) and Cristina Bernal Martinez (applications support engineer, both at Getinge) reviewed factors for scale-up success and presented a case study involving transfer of cell cultures to Applikon AppliFlex SU stirred-tank (ST) reactors. The Presentations…