Sodium Bisulphite
Also known as: E222, Sodium bisulfite
Sodium bisulphite is GRAS at FDA but prohibited on raw fruits and vegetables since 1986 after sulfite-induced asthma reactions caused several deaths. Sulfites must be declared on labels at concentrations of 10 ppm or greater.
What it is
Sodium bisulphite (E222), a sulfite preservative that releases sulfur dioxide.
Preservative, antioxidant, antimicrobial; prevents browning and microbial growth.
Why it's flagged
- Triggers severe asthma reactions in sulfite-sensitive individuals; FDA-prohibited on raw fruits/vegetables since 1986
- Destroys vitamin B1 (thiamine)
What regulators actually say
"Sodium bisulfite. The ingredient is generally recognized as safe when used in accordance with good manufacturing practice, except that it is not used in meats; in food recognized as a source of vitamin B1; on fruits or vegetables intended to be served raw to consumers or sold raw to consumers."
"FDA requires the presence of sulfites in foods to be declared on the label when used as an ingredient and when present at concentrations of 10 ppm or greater."
Regulatory status
United States — FDA
GRAS with restrictions (21 CFR 182.3739); banned on raw fruits/vegetables
European Union — EFSA
Approved with restrictions; ADI 0.7 mg SO2/kg bw/day
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