Sulphur
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What it is
Sulphur is a naturally occurring chemical element, found widely in nature in volcanic areas and in mineral springs. It is a yellow, crystalline solid that is essential for life, playing a role in protein structure. In food processing, it is often used in the form of sulfites.
Why it's used
Sulfites are commonly used as preservatives in dried fruits, wines, and processed meats. They act as antioxidants, preventing browning and spoilage, and also have antimicrobial properties. They can also be used as a leavening agent in baked goods.
Health notes
Sulfites are generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices. However, a small percentage of the population, particularly those with asthma, may be sensitive to sulfites, experiencing allergic-type reactions. Regulatory bodies like JECFA and EFSA have evaluated sulfites, and while they have established acceptable intake levels, some debate continues regarding the precise mechanisms and prevalence of sulfite sensitivity.
Allergen info
Sulphur and sulfites are not derived from any of the nine FDA major allergens. They do not contain gluten.