E529
Calcium Oxide
Halal
Usage: Alkali
Prepared from limestone
Is Calcium Oxide (E529) Halal?
Yes — E529 (Calcium Oxide) is listed as halal by MUIS.
Why is E529 halal?
MUIS lists E529 (Calcium Oxide) as halal. It is a mineral (inorganic) substance and no animal material is involved in producing it. The status applies to the additive itself; the finished product still needs its other ingredients checked.
About Calcium Oxide
Calcium oxide (quicklime) is a strong alkali produced by calcining limestone. It is used as a flour treatment agent, acidity regulator and processing aid in sugar refining.
Commonly Found In
- flour improvement
- sugar refining
- bakery applications
- cocoa processing
Source & Origin
MineralAlkaliVeganVegetarian
How to check on the label
- E529 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 Calcium Oxide (E529) halal or haram?
E529 (Calcium Oxide) is halal for Muslims according to the MUIS food additive listing. Calcium oxide (quicklime) is a strong alkali produced by calcining limestone.
What is E529?
Calcium oxide (quicklime) is a strong alkali produced by calcining limestone. It is used as a flour treatment agent, acidity regulator and processing aid in sugar refining.
Where is E529 commonly found?
E529 is commonly found in flour improvement, sugar refining, bakery applications, and cocoa processing.
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.