This study visualizes the production of xylitol by a fermentation process in a continuous stirred tank bioreactor. In the first step, a validated dynamic kinetics model was recalled and extended for describing a continuous process. Next, through a likewise sensitivity analysis the uniqueness of steady states was established, and the process conditions for maximum xylitol production were settled down. Dynamical simulations around several steady states along trajectories drawn by sensitivity analysis showed that the process was stable, and a regulatory control system was designed on the basis of a conventional PI controller and considering two possible control pairs: it was shown how the process was not controllable at the state of maximum xylitol production, but with a little displacement from that state, the reactor became controllable.