Understanding Acidity & pH

Acidity and pH play an important role in how your wine tastes, ferments, and ages. While these concepts can sound technical, the basics are simple. pH measures how acidic your wine is—lower pH means higher acidity, while higher pH means lower acidity. Most wines fall within a balanced range that allows for proper fermentation and a clean, stable final product.

Acidity affects both flavor and structure. Too little acidity can make wine taste flat, while too much can make it overly sharp. It also helps protect the wine during fermentation and aging. In most cases, starting with quality juice means your acidity levels are already in a good range, especially for beginners.

If adjustments are needed, they are typically made before or early in fermentation. Acid can be increased using blends like tartaric acid, while high acidity can sometimes be reduced through processes like cold stabilization. These adjustments should always be made carefully and in small amounts.