Is Calcium Hydroxide (E526) Halal?

MUIS lists E526 (Calcium Hydroxide) 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.

Calcium hydroxide (slaked lime, pickling lime) is an alkali used as a firming agent, acidity regulator and calcium fortifier. It is essential for nixtamalising corn for tortillas.

• corn tortillas (nixtamalisation)
• fruit preserves (firming)
• sugar refining
• infant formula

• E526 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.

sodium hydroxide (E524), calcium oxide (E529), calcium carbonate (E170)

E526 (Calcium Hydroxide) is halal for Muslims according to the MUIS food additive listing. Calcium hydroxide (slaked lime, pickling lime) is an alkali used as a firming agent, acidity regulator and calcium fortifier.

Calcium hydroxide (slaked lime, pickling lime) is an alkali used as a firming agent, acidity regulator and calcium fortifier. It is essential for nixtamalising corn for tortillas.

E526 is commonly found in corn tortillas (nixtamalisation), fruit preserves (firming), sugar refining, and infant formula.