Sodium Hydroxide (E524)

Type of additive
(Glossary)		Acidity Regulators
Thickeners
E NumberE524
Chemical FormulaNaOH
Also Known AsAscarite
Caustic soda
Lye
Soda lye
Sodium hydrate
White caustic

Purpose and Function

Sodium hydroxide is primarily used as an acidity regulator in food applications:

  • Acidity Regulator: It helps maintain pH levels in food products, contributing to flavor and preservation.
  • Food Processing: Sodium hydroxide is used in the processing of olives and other fruits to reduce bitterness and enhance flavor.
  • Cleansing Agent: In non-food applications, it is used for its strong cleansing properties.
  • pH Adjuster: It is commonly used to regulate acidity levels in various food formulations, contributing to overall product stability.

Potential Risks and Side Effects

Sodium hydroxide is highly corrosive and should be handled with extreme care. It is generally not used directly in food applications but may be involved in food processing. Concerns include:

  • Corrosive Nature: Sodium hydroxide can cause burns if mishandled and should not be consumed in unregulated amounts.
  • Gastrointestinal Issues: Inappropriate exposure or consumption can lead to severe gastrointestinal discomfort, including burns.
  • Contaminants: Sourcing from reputable suppliers is essential to minimize the risk of contaminants in food formulations.