E524
Sodium Hydroxide
Halal
Usage: Neutralising Agent
Prepared by electrolysis from brine, or precipitated from sodium carbonate and lime solution
Is Sodium Hydroxide (E524) Halal?
Yes — E524 (Sodium Hydroxide) is listed as halal by MUIS.
Why is E524 halal?
MUIS lists E524 (Sodium Hydroxide) as halal. It is manufactured synthetically from non-animal raw materials. The status applies to the additive itself; the finished product still needs its other ingredients checked.
About Sodium Hydroxide
Sodium hydroxide (caustic soda, lye) is a strong alkali used as an acidity regulator and processing aid. It is famously used in the production of pretzels, hominy and traditional lye-cured olives.
Commonly Found In
- pretzels
- hominy / nixtamalised corn
- cocoa processing
- olives
- Chinese-style noodles
Source & Origin
SyntheticNeutralising AgentVeganVegetarian
How to check on the label
- E524 on its own is not a reason to avoid a product.
- The finished product still needs its other ingredients checked — look for a halal certification logo (MUIS, JAKIM, MUI, HMC or similar) when in doubt.
- Halal status here follows the MUIS food additive listing; rulings can differ between certification bodies.
Frequently asked questions
Is Sodium Hydroxide (E524) halal or haram?
E524 (Sodium Hydroxide) is halal for Muslims according to the MUIS food additive listing. Sodium hydroxide (caustic soda, lye) is a strong alkali used as an acidity regulator and processing aid.
What is E524?
Sodium hydroxide (caustic soda, lye) is a strong alkali used as an acidity regulator and processing aid. It is famously used in the production of pretzels, hominy and traditional lye-cured olives.
Where is E524 commonly found?
E524 is commonly found in pretzels, hominy / nixtamalised corn, cocoa processing, olives, and Chinese-style noodles.
Related acidity regulators
Halal status source: MUIS Food Additive Listing ·
Information on this page is for general reference only. Halal-status data is sourced from MUIS. For current regulatory status, allergen warnings, or dietary advice, please consult your local food safety authority or a qualified professional.