Sulfites are preservatives that are commonly used in the food and beverage industry. Alternative forms of sulfites include other sulfur-based preservatives such as potassium metabisulfite, sodium sulfite, and sodium bisulfite. Other food preservatives that are alternatives to sulfites include citric acid, ascorbic acid, and vinegar. Additionally, there are some natural preservatives such as herbs and spices, and vinegar-based marinades that can be used as alternatives to sulfites.
