What is the primary purpose of using sulfites in winemaking?

Sulfites in winemaking serve a crucial role in preserving wine and preventing oxidation and spoilage. When added, sulfites act as antioxidants that protect the wine from oxidative damage, which can lead to undesirable flavors, aromas, and colors. They also serve as antimicrobial agents, inhibiting the growth of unwanted bacteria and yeast that could compromise the wine’s integrity and safety.

This preservation is essential throughout the winemaking process, from fermentation to bottling, ensuring that the wine maintains its intended quality over time. In contrast, enhancing flavor, improving color, and increasing alcohol content are not the primary functions of sulfites; those aspects are influenced by other factors in viticulture and winemaking techniques.