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Potassium Persulfate
Potassium Persulfate
Also known as: E922
High concern
Potassium persulfate (E922) is not authorized for use as a food additive in the EU (delisted from approved additives) and is not a permitted flour treatment in the U.S. It is a known skin and respiratory sensitizer.
Found in
3 products
E-number
E922
What it is
Potassium persulfate, an inorganic salt previously used as a flour treatment agent.
Historically a flour improver/oxidizing agent.
Why it's flagged
- respiratory sensitizer
- skin sensitizer
- not permitted in EU food
What regulators actually say
"Only food additives included in the Community list in Annex II may be placed on the market as such and used in foods."
Regulatory status
United States — FDA
Not approved as a food additive
European Union — EFSA
Not authorized in Annex II of Regulation 1333/2008
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