Food additive · Acidity regulator / processing aid

Sodium hydroxide (food)

E-number
E524

A food-grade alkali used to cure olives, glaze pretzels and adjust acidity; it is neutralized in the finished food.

  • Food additive
  • Expert review pending

Concern level

No concern Level 0 of 4 How concern levels work

A whole food or a benign function, with no credible concern. It never costs points. The concern level sets how many points sodium hydroxide (food) costs on a product’s receipt.

Popular products that list sodium hydroxide (food)

38 of the 17,000 most-scanned products in the US with a GoodSwap page list sodium hydroxide (food). The 12 most scanned:

Diets and allergens

Vegan
Yes
Vegetarian
Yes
Gluten-free
Yes

For the ingredient in general. Always check the package: a product’s own labels win.

Names GoodSwap recognizes on labels (8)
  • lye
  • e524
  • sodium hydroxide
  • potassium hydroxide
  • sodium hydroxide food
  • acidity regulator e524
  • acidity regulator sodium hydroxide
  • acidity regulator potassium hydroxide

Sources

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