E526
Calcium hydroxide
What the research shows
Not enough
published research on this page yet
A white powder made from lime and water.1
- Vegan
- Vegetarian
- EU permitted
What expert reviews concluded
Expert panels that weigh all the research. Shown for context: the signal at the top does not count them.
-
UN and WHO food additive experts (JECFA), 1965
No daily limit needed (“ADI not specified”, JECFA’s term for very low toxicity).
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 184.1205
-
European Union Permitted EUR-Lex Reg. (EC) 1333/2008
-
United Kingdom Permitted FSA retained EU law
-
Canada Permitted Health Canada · Adjusting Agents
Status reflects the named register on the date checked. It is not a safety rating.
How we checkProducts
The 6 most-scanned of 433 products on Open Food Facts that list calcium hydroxide.
- Tortilla Chips Kirkland Que Pasa · 908 g 0 additives
- Patak's Plain Pappadums x 8 Morrisons · 64 g 1 additive
- Noodles Bare naked foods · 250 g 1 additive
- VOLCANIC STONE GROUND TORTILLA CHIPS QUE PASA · 350 g 0 additives
- No Calcium OJ Tropicana · 1.36 L 2 additives
- Doritos Doritos · 235 g 5 additives
References
- 1Calcium hydroxide. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.