Sulfites To Maintain Whiteness

Sulfites are compounds containing sulfur and oxygen. They occur naturally in small amounts in some foods and are also produced by the body. For food use, they are typically manufactured from sulfur dioxide.

Sulfites are added to foods as a preservative to prevent browning and spoilage, and to maintain a lighter color. They are often found in dried fruits, processed potatoes, wine, and baked goods like bread and muffin mixes.

In the U.S., sulfites are regulated by the FDA as a food additive. They are generally recognized as safe (GRAS) for use in many foods, but the FDA requires products containing more than 10 parts per million of sulfites to declare them on the label. Some individuals, particularly those with asthma, may be sensitive to sulfites and experience allergic-type reactions. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have evaluated sulfites. While generally considered safe, ongoing research continues to explore potential sensitivities.