Calcium sulphite
كبريتيت الكالسيوم
Preservative (sulfiting agent)
A sulfite - a regulated allergen. Caution if you're sulfite-sensitive or asthmatic.
Why this verdict
EFSA 2016 group ADI 0.7 mg SO2 equiv/kg bw/day (E220-228); intake can exceed the ADI. Regulated declarable allergen >10 mg/kg - can trigger asthma and severe reactions in sensitive people. Also destroys thiamin (vitamin B1).
What It Is
A sulfiting agent (preservative and antioxidant); a less common sulfiting and firming agent.
Sulfites are a regulated allergen - declared on labels above 10 mg/kg because they can trigger asthma attacks and severe reactions in sensitive people. They keep dried apricots orange and wine stable, and quietly destroy vitamin B1 (thiamin) in food. EFSA found intake can exceed the safe level in some groups.
Evidence & Status
IARC Carcinogen Group
Not classified
Acceptable Intake
0-0.7 mg/kg bw/day (as SO2)
EU Status
Approved (group ADI 0.7 mg SO2/kg bw, EFSA 2016; declarable allergen >10 mg/kg)
US · FDA Status
Approved (sulfite labeling required >10 ppm)
Halal Status: Halal
Mineral/synthetically produced sulfite salt; halal.
Worth Knowing
Also Known As
E 226
Primary Source
Evidence, not medical advice. You decide.
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