Learn Glossary acidulant

Potassium Hydroxide(E525)

Level 4Significant concernsIn Winter's Dictionary

Potassium Hydroxide is a acidulant — Strong alkali used as cocoa product alkalizer, peeling additive for fruits/tubers

What it does

Strong alkali used as cocoa product alkalizer, peeling additive for fruits/tubers

Where you'll see it

cocoa products, peeled fruits and vegetables, processed foods

What the research says

Extremely corrosive. Ingestion may cause violent pain, bleeding, collapse, and death. When applied to mice skin in moderate doses, causes tumors. May cause skin rash and burning.

Regulatory status

  • US FDA: GRAS
  • EU: approved
  • Notes: FDA banned household products >10%

Sources

  • A Consumer's Dictionary of Food Additives (Winter): Extremely corrosive, and ingestion may cause violent pain, bleeding, collapse, and death. When applied to the skin of mice, moderate dosages cause tumors