Ingredient · E220

Preserved With Sulphur Dioxide

Source
Not animal-derived
Allergen
No
Role in food
Sulfur dioxide and sulfites are added to foods to prevent spoilage by inhibiting the …

What is Preserved With Sulphur Dioxide?

Sulfur dioxide (SO2) is a gas used as a preservative. It is produced industrially by burning sulfur or by heating metal sulfides. It can also occur naturally in small amounts during fermentation.

Is Preserved With Sulphur Dioxide vegan?

Preserved With Sulphur Dioxide is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Preserved With Sulphur Dioxide gluten-free?

Sulfur dioxide is not one of the 9 FDA major allergens and does not contain gluten.

What is Preserved With Sulphur Dioxide used for?

Sulfur dioxide and sulfites are added to foods to prevent spoilage by inhibiting the growth of bacteria, yeasts, and molds.

Is Preserved With Sulphur Dioxide safe?

Sulfur dioxide is approved by the FDA as a food additive for preservation.

Why it's used

Sulfur dioxide and sulfites are added to foods to prevent spoilage by inhibiting the growth of bacteria, yeasts, and molds. They also act as antioxidants to prevent browning and preserve color. They are commonly found in dried fruits, wines, and some baked goods.

Health notes

Sulfur dioxide is approved by the FDA as a food additive for preservation. Some individuals, particularly those with asthma, may experience sensitivity reactions to sulfites, including breathing difficulties. Regulatory bodies like JECFA and EFSA have evaluated sulfites and established guidelines for their use. Evidence on widespread adverse effects in the general population at typical intake levels is mixed.

Allergen info

Sulfur dioxide is not one of the 9 FDA major allergens and does not contain gluten.

Foods that contain Preserved With Sulphur Dioxide

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.