A U.S. Patent for a “Bioreactor System” was awarded to GE on December 3rd, 2019. The present inventionis a method for regulating parameters of at least two bioreactor bags individually, which bioreactor bags are provided on one and the same rocking part of a bioreactor system, said method comprising the steps of: determining an individual weight of the content in each bioreactor bag at different points in time during processing; regulating one or more parameters in each bioreactor bag in dependence of the individual weights; wherein the step of determining an individual weight of the content in each bioreactor bag comprises… Learn More