01 / 04What it is
E221 in plain English
Sulphite preservative; can trigger asthma, requires disclosure.
02 / 04Why it's used
It buys shelf life.
To inhibit the growth of mould, yeast and bacteria, extending the shelf life of products well beyond what they would otherwise tolerate.
preservative
03 / 04Health concerns
Mixed evidence — worth knowing.
Mixed evidence — some regulators restrict, others permit.
04 / 04Regulatory status
How the world's regulators rule
- Australia · FSANZ
- Restricted
- Banned jurisdictions
- None recorded
- Filtr risk tier
- Moderate
- Filtr score penalty
- −3 points
- Category
- Preservative
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