Dissolving PMS (Potassium Metabisulfite) in Water or Wine vs Direct Addition

Potassium metabisulfite (PMS) is one of the key additives used in winemaking to prevent oxidation and control unwanted microorganisms. In this article, we explain how PMS should be added to wine and discuss the advantages of dissolving it in water before addition, along with the practical and technical considerations behind this method.