The Stemmy Truth: Why Whole Cluster Fermentation is Shaping Modern Wines
Let’s talk about the “stemmy” wines that have left many drinkers perplexed. The answer lies in a centuries-old winemaking technique called whole cluster fermentation—where grapes are fermented with their stems intact. This method, once a necessity before destemming machines, has resurged as a tool to craft wines with bold structure, herbal intrigue, and a unique interplay of acidity and fruit. But why does it often taste like a mix of greenery and candied sweetness? Let’s unravel the science and art behind it. Whole cluster fermentation isn’t just about stems—it’s about chemistry. Stems inject potassium, which alters the wine’s acidity and…
