INS 333
antioxidants, phosphates, and complexing agentsCalcium Citrates
Halal
Is INS 333 (Calcium Citrates) halal?
Generally accepted as halal. Typically derived from plant or synthetic sources with no prohibited ingredients.
What to do
Safe to buy. This additive is permissible under Islamic dietary law.
Where is INS 333 used?
INS (International Numbering System) codes are maintained by the Codex Alimentarius Commission and used on food labels in many countries outside the EU. You will commonly see INS 333 on packaging from:
In the EU and UK, the same additive appears as E333. The ingredient, halal status, and sourcing considerations are identical — only the labelling system differs.
EU / UK equivalent: E333
INS 333 and E333 refer to the same food additive — Calcium Citrates. If you are checking a product purchased in the UK or Europe, look for E333 on the label instead.
See full E333 halal guide →About INS 333
Miscellaneous - citric acid and its salts
Sources / Derived From
- citric acid + calcium hydroxide (synthetic)
Foods that commonly contain INS 333
Frequently Asked Questions
Is INS 333 (Calcium Citrates) halal?
INS 333 (Calcium Citrates) is classified as Halal. Generally accepted as halal. Typically derived from plant or synthetic sources with no prohibited ingredients.
What is INS 333 used for?
INS 333 is used as a acidity regulator and firming agent in food products.
What is the difference between INS 333 and E333?
INS 333 and E333 are the same additive — Calcium Citrates. INS numbers are used on food labels in Australia, New Zealand, Malaysia, Singapore, Indonesia, India, and GCC countries. The E-number system (E333) is used in EU and UK markets. The halal status is identical regardless of which label system is used.
What foods contain INS 333?
INS 333 (Calcium Citrates) is commonly found in: processed cheese, baked goods, jams.
What is INS 333 made from?
INS 333 can be derived from: citric acid + calcium hydroxide (synthetic).
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