Last reviewed May 2026 · 1 min read
Is Calcium Oxide vegan?
Also known as: Quicklime, E529
E-number: E529
Vegan
Suitable for a vegan diet.
Yes — 100% mineral-based.
01 · The basics
What is Calcium Oxide?
A mineral compound used as an acidity regulator and processing aid.
02 · The source
Where it comes from
100% mineral-based.
Frequently asked
FAQ
Is E529 vegan?
Yes, it is a mineral product.
Commonly found in
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Other processing aid ingredients
Calcium Gluconate
A firming agent and acidity regulator.
Chitin
A fibrous substance consisting of polysaccharides, used in agriculture, winemaking, and dietary supplements (for weight loss).
Chitosan
A linear polysaccharide derived from chitin, heavily marketed in supplements as a 'fat binder' for weight loss.
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