Sodium Metabisulfite (E223) – Food Grade

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Key Functions as a Food Additive:

Antimicrobial preservative
Bleaching agent
Reducing agent
Antioxidant

Common Applications in the Food Industry:

Sodium metabisulfite is used in a variety of products where its preservative and antioxidant properties are crucial:

Seafood
Dried fruits
Fruit juices
Wines and beers
Processed potatoes
Syrups and jams
Non-alcoholic beverages
Bakery products
Processed fruits and vegetables

For more information, download the technical data sheet

Sodium metabisulfite (E223) is an inorganic salt widely used as a preservative, antioxidant, and reducing agent. Its effectiveness lies in its ability to release sulfur dioxide (SO₂), a molecule with potent antimicrobial and antioxidant properties.

Sodium metabisulfite appears as a white or yellowish crystalline powder with a slight odor of sulfur dioxide. When dissolved in water, it releases sulfur dioxide (SO₂), which is the active form responsible for its functional properties.

Regulatory Status and Safety Considerations

Sodium metabisulfite is a widely studied food additive considered safe for human consumption at the doses permitted by major regulatory authorities, including:

U.S. Food and Drug Administration (FDA): Permits its use in certain foods with specific limits. However, its use on fresh fruits and vegetables intended to be consumed raw is prohibited due to concerns for sensitive individuals.
European Food Safety Authority (EFSA): Classified as a food additive (E223) and has re-evaluated its safety, establishing an Acceptable Daily Intake (ADI) of 0.7 mg of SO₂/kg of body weight per day for the sulfite group.
Joint FAO/WHO Expert Committee on Food Additives (JECFA): Has established an ADI for sulfites.

For more information, download the technical data sheet

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