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• What are sulfites and why are they used? Sulfur dioxide(SO2) is a naturally occurring type of sulfite. Mined sulfur is heated into a liquid and used to protect wine from oxidizing. The same method has been used to protect wine from oxidization for centuries. Sulfur dioxide is used to protect the wine’s character by inhibiting the growth of molds and bacteria and by stopping oxidation (browning) of the wine. In grape juice or wine, sulfur dioxide reacts with water molecules to form sulfites. A sulfiting agent can be added to foods and beverages in the form of sulfur dioxide (a gas) or as potassium bisulfite or metabisulfite (powders). In solution, all forms act the same way, releasing sulfur dioxide. • Is the addition of sulfites to wine a new procedure? No. There is strong evidence that sulfur dioxide was used by Egyptians and has been in regular use since Roman times. European winemakers have used sulfur dioxide to prevent wine spoilage for centuries. • Are there also naturally occu
• What are sulfites and why are they used? Sulfur dioxide(SO2) is a naturally occurring type of sulfite. Mined sulfur is heated into a liquid and used to protect wine from oxidizing. The same method has been used to protect wine from oxidization for centuries. Sulfur dioxide is used to protect the wine’s character by inhibiting the growth of molds and bacteria and by stopping oxidation (browning) of the wine. In grape juice or wine, sulfur dioxide reacts with water molecules to form sulfites. A sulfiting agent can be added to foods and beverages in the form of sulfur dioxide (a gas) or as potassium bisulfite or metabisulfite (powders). In solution, all forms act the same way, releasing sulfur dioxide. • Is the addition of sulfites to wine a new procedure? No. There is strong evidence that sulfur dioxide was used by Egyptians and has been in regular use since Roman times. European winemakers have used sulfur dioxide to prevent wine spoilage for centuries. • Are there also naturally occu
