Eat or Avoid
E525

Potassium Hydroxide

Also known as: Caustic potash, Potash lye, Potassium hydrate

Acidity RegulatorsThickeners

Safety rating

Avoid

Eat Away!Generally SafeUse SparinglyAvoid

Purpose and Function

Potassium Hydroxide is used in the processing of olives and other fruits to reduce bitterness, and as a pH adjuster in food formulations. It is highly corrosive and is rarely used directly in finished food products.

Commonly found in

  • Processed olives and fruit (processing aid, not present in finished product)

Key functions

  • Reduces bitterness during olive/fruit processing
  • Adjusts pH

Potential Risks and Side Effects

  1. 01Highly corrosive — can cause burns if mishandled and should not be consumed in unregulated amounts
  2. 02Inappropriate exposure or consumption can cause severe gastrointestinal discomfort, including burns

References

    Related Additives