Dyes and additives

Potassium bromate: federal rules and state bans

Bromate strengthens dough and helps bread rise higher. It has not been revoked by the FDA, and California will be the first state to keep it out of all food.

Is this dye or additive banned in your state?

Try a date in 2027 or 2028 to see what changes.

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Potassium bromate in California, November 5, 2026

Banned in California from January 1, 2027

FDAAllowed by FDA Authorized for malting barley (21 CFR 172.730) and allowed in bromated flour under its standard of identity (21 CFR 137.155). No revocation published in the Federal Register as of November 1, 2026.
all food soldEnacted, not yet in effect AB 418 (2023), from January 1, 2027.

Potassium bromate, E924, CAS 7758-01-2. School rules cover food served or sold to students, not grocery shelves. Legal status only, not health advice.

All dye and additive rules in California

Potassium bromate is still permitted at federal level in two places: in malting barley, under 21 CFR 172.730, and in flour, where the standard of identity for bromated flour at 21 CFR 137.155 allows it up to 50 parts per million. No proposal to revoke those uses had been published in the Federal Register by November 1, 2026. From January 1, 2027, its Food Safety Act bans it outright from food manufactured, sold or distributed in the state, with a civil penalty of up to $5,000 for a first violation and $10,000 for each later one. Utah, Arizona, Texas, Louisiana and Iowa name it in their school rules. On a label it appears as potassium bromate or as "bromated flour".

Which states keep this dye out of school food?

School-food rules naming Potassium bromate

5 states

Texas: the 2026-2027 school year (food contracts entered into or renewed on or after September 1, 2026) (in effect)
Utah: the 2026-2027 school year (in effect)
Louisiana: the 2028-2029 school year (enacted, not yet in effect)
Arizona: the 2026-2027 school year (in effect)
Iowa: school years beginning on or after July 1, 2027 (enacted, not yet in effect)

All food sold, not only schools: California.

Read the school meal rules →

Laws and FDA orders read by Radif Partners · Editorial policy · Method and sources

Bromated flour on a label

A product made with bromated flour may name the flour rather than the chemical, so the checker reads "bromated flour" as potassium bromate.

Where it was found

Most of the products that list it in FoodData Central fall outside the categories of this site, which does not track bread; the table below shows the counts in the categories it does track, mostly cookies and cakes.

Potassium bromate: identity and federal status

Read on November 1, 2026.
Name in the federal rulesPotassium bromate
Other names on labelsBromated flour
E number (EU)E924
CAS number7758-01-2
Federal rule21 CFR 172.730 and 137.155
FDA statusAuthorized for malting barley (21 CFR 172.730) and allowed in bromated flour under its standard of identity (21 CFR 137.155). No revocation published in the Federal Register as of November 1, 2026.

State laws that name Potassium bromate

6 states; laws read on November 1, 2026.
StateLawScopeFromStatus today
CaliforniaAB 418 (2023)all food soldJanuary 1, 2027Enacted, not yet in effect
TexasSB 25 (89th Legislature, 2025)package labellabels developed or copyrighted on or after January 1, 2027Enacted, a court order bars enforcement against some companies
TexasSB 314 (89th Legislature, 2025)school foodthe 2026-2027 school year (food contracts entered into or renewed on or after September 1, 2026)In effect
UtahHB 402 (2025)school foodthe 2026-2027 school yearIn effect
LouisianaSB 14 (2025)school foodthe 2028-2029 school yearEnacted, not yet in effect
LouisianaSB 14 (2025)package labelDecember 31, 2028Enacted, not yet in effect
ArizonaHB 2164 (2025)school foodthe 2026-2027 school yearIn effect
IowaHF 2676 (91st General Assembly)school foodschool years beginning on or after July 1, 2027Enacted, not yet in effect

Where Potassium bromate shows up in labeled products

USDA FoodData Central, Branded Foods, release of October 29, 2026; one product per barcode.
CategoryProducts listing itProducts in the categoryShare
Cakes, pastries and toaster pastries6014,0070.4%
Cookies6314,7400.4%
Cake and baking mixes157,5070.2%
Ice cream and frozen treats615,1540.0%
Chips, crackers and snacks1855,0860.0%
Sauces, dressings and pickles642,5150.0%
Candy and chocolate433,9040.0%
Yogurt, milk and cheese130,2790.0%

Questions people ask

Which states have a law naming Potassium bromate?

As of November 1, 2026, 6 states: California, Texas, Utah, Louisiana, Arizona and Iowa. By kind of rule: all food sold in the state, California; school food, Texas, Utah, Louisiana, Arizona and Iowa; package labels, Texas and Louisiana. Each rule has its own start date, given in the table on this page with a link to the text.

What is the FDA status of Potassium bromate today?

Allowed by FDA. Authorized for malting barley (21 CFR 172.730) and allowed in bromated flour under its standard of identity (21 CFR 137.155). No revocation published in the Federal Register as of November 1, 2026. The federal rule applies in every state, before any state law, and is read in the Federal Register and the electronic Code of Federal Regulations.

How does Potassium bromate appear on an ingredient list?

It may be written as Bromated flour, and products made for Europe print E924. Federal rule 21 CFR 172.730 and 137.155 governs its use. A certified dye must be named in the list rather than covered by "artificial color", and a lake form must keep the word "Lake".

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Laws and official pages behind this page

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Food dye and additive rules 2026, read in each state law and in the Federal Register, last checked on