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E525AcidulantLow concern
Potassium Hydroxide
In plain words
The short version
Caustic potash — sodium-free alkali for pretzel browning, olive curing, and Dutch cocoa.
Why it's green
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Safety profile
ADI not specified — neutralized to harmless potassium salts during food processing. Pure material is highly corrosive (workplace hazard) but the consumer-product residual is trace.
The detail
Educational information only. Not medical or dietary advice.