How Sulfites Affect a Wine’s Chemistry 

Wine professionals discuss sulfur’s impact on everything from oxidation to aromatic compounds and texture. The emergence of natural wine and the strong viewpoints that sometimes come with it—or against it—have generated endless arguments about sulfite additions and their effects on wine. Chemistry may be more useful than ideology for resolving those disputes, and on that front, scientific research is increasingly showing that sulfites have a very wide set of effects on wine’s aromas, mouthfeel, structure, and development in both the cellar and the bottle. Traditionally, sulfur dioxide (also known as SO2 or… Read More