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Additives

Calcium Bromate (E924B): What It Is and Is It Safe?

Hazardous Flour Treatment Agent · Bromate oxidiser

Calcium bromate is an oxidising flour-maturing agent that acts through the bromate ion, the same reactive species as in potassium bromate. Bromate is genotoxic and causes kidney tumours in animals, and IARC classifies bromate as possibly carcinogenic to humans (Group 2B). It is not authorised as a food additive in the EU or UK.

Category
Flour Treatment Agent — Bromate oxidiser
Typically used in
Oxidising flour-maturing agent (not authorised in EU/UK).
Regulatory status
Not authorised as a food additive in the EU/UK; shares the carcinogenic bromate-ion concern that led to bans on bromate flour treatment.
Concerns flagged
Carcinogenicity concernGenotoxicity concernKidney effects

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Sources

Where this comes from

  1. IARC (1999) — Potassium Bromate IARC Monographs Volume 73 https://www.inchem.org/documents/iarc/vol73/73-17.html
  2. IARC (1999) — Some Chemicals that Cause Tumours of the Kidney or Urinary Bladder in Rodents https://www.ncbi.nlm.nih.gov/books/NBK402079/
Products

Products containing Calcium Bromate

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