What are sulfites and should I be worried about them?
Sulfite is a term used to describe sulfur dioxide and other sulfur derivatives. Sulfites are found in all wines as they are a natural product of fermentation. Sulfur dioxide is used in wine making to prevent oxidation, kill bacteria and wild yeasts, and encourage quick and clean fermentation. The U.S. government requires wine labels to include Contains Sulfites to alert those who may be allergic to sulfites. Approximately 1% of the population is allergic to sulfites.