What are sulfites?
Sulfites, also commonly called sulfur dioxide, are chemical compounds that contain sulfite ions. They are found naturally in a variety of food sources, including black tea, peanuts, and eggs. Sulfites are used as a preservative in many foods and beverages to slow deterioration. Winemakers utilize sulfites to minimize oxidation, prevent discoloration, and maintain freshness. Sulfites also have antimicrobial properties and can prevent bacterial growth, prolonging the shelf life of the wine.