Potassium Carbonate - 1 lb Food Grade Mineral for Brewing & WinemakingPotassium Carbonate is a vital mineral used in winemaking and brewing for pH adjustment. In winemaking, it is primarily used to reduce high acidity (raise pH) in musts that are too tart. In brewing, it is a key water addition for dark beers, helping to provide the alkalinity needed to balance acidic roasted malts. It is more soluble than calcium carbonate, making it easier to dose accurately in cold solutions. Wine Maker's Tip: Use Potassium Carbonate