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Conservateur : E220

E220 is sulfur dioxide, a common food preservative used to prevent microbial growth and oxidation in foods and beverages.

Mineral or nutrientUpdated May 21, 2026
Health score-3.0
-5Poor5

Water guidelines

Legal limit
Not specified
Health guideline
Not specified

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Respiratory irritant especially for asthmatics, possible allergen, regulatory limits on exposure

Benefits

Inhibits spoilage and oxidation, extends shelf life of food products

References

Waters containing Conservateur : E220

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