The Physical and Chemical Stability of Wine (a.k.a. VEN 126 Wine Stability) course deals with the most important physical, chemical, and enzymatic reactions in juices and wines, together with the theory and principles associated with the adjustment of acidity, fining, stabilization for shipping, and the clarification of wines. The course provides students with a scientific basis and a quantitative perspective of our understanding of the physical and chemical reactions in wines, other than ethanol and malolactic fermentations.