“No added sulfite wines” refer to wines that are made without the addition of sulfites, specifically sulfur dioxide (SO2), during the winemaking process. Sulfur dioxide is a common preservative used in winemaking to prevent oxidation and microbial spoilage. However, some individuals may be sensitive to sulfites or prefer wines made without their addition.

While sulfites occur naturally in wine due to the fermentation process, no added sulfite wines are made without the additional use of sulfur dioxide during wine making. However, it’s important to note that even without added sulfites, there may still be trace amounts of sulfites present in the wine due to natural fermentation. Sometimes a minimal amount of sulfite is added during bottling to preserve the wine.