Acetone peroxides

Acetone peroxides are flour bleaching and maturing agents used in the United States. They act quickly, letting freshly milled flour be used without the weeks of natural ageing it would otherwise need.

Where it is and isn’t permitted

Status of Acetone peroxides by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted, with conditions21 CFR 172.802retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Produced by reacting acetone with hydrogen peroxide. They decompose during dough processing.

  • Vegan
  • Vegetarian

Every name it appears under

1 recorded name. A label may use any of them.

As it appears in regulation

  • Acetone peroxides

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/acetone-peroxides.json