E. & J. Gallo Winery, one of the world’s most respected wine producers, has partnered with Voltea to enhance water quality at its St. Helena operations in Napa Valley. By installing Voltea’s cutting-edge Capacitive Deionization (CapDI) system, Gallo ensures ultra-pure water for every stage of production—from rinsing barrels to blending wines—where consistency is key to maintaining the winery’s high standards.

Water quality is critical in winemaking, as even trace minerals or inconsistencies can alter taste, fermentation, and long-term stability. CapDI technology selectively removes dissolved salts without chemicals or added waste, delivering repeatable water profiles regardless of source variations. This upgrade reflects Gallo’s commitment not just to great wine, but to sustainable, precision-driven operations. It’s another step in aligning tradition with innovation in the heart of Napa Valley.