The beer production process has always been a driving force and a suitable application area for innovations -from the introduction of modern refrigeration by Carl von Linde to the establishment of new manufacturing philosophies such as the Process Analytical Technology (PAT) initiative. The PAT is an innovative tool for implementing an optimum process control with the objective of consistent product quality. In contrast to the common practice of product release by extensive laboratory analysis, a process-oriented validation and release in real time is desired.