Ammonium Hydroxide
Also known as: E527, Aqua ammonia, ammonia, household ammonia, ammonia water
Ammonium hydroxide is FDA-affirmed GRAS under 21 CFR 184.1139 with no limitation other than current good manufacturing practice. EFSA authorizes it as E527 with no numerical ADI.
What it is
Ammonium hydroxide (NH4OH, CAS 1336-21-6); aqueous solution of ammonia. Used as alkali, leavening agent and pH adjuster.
Leavening agent, pH-control agent, surface-finishing agent and processing aid.
Why it's flagged
- high concentrations are corrosive (industrial handling, not finished food)
- consumer exposure is minimal at use levels
What regulators actually say
"The ingredient is used in food with no limitation other than current good manufacturing practice."
Regulatory status
United States — FDA
Affirmed GRAS as direct food substance under 21 CFR 184.1139; multipurpose food chemical
European Union — EFSA
Authorized food additive E 527 (no ADI specified, quantum satis)
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