Calcium hydroxide (E526) — ADI NOT LIMITED mg/kg bw | Food Safety Data

SOURCE D1 identity resolution e number aliases | Food Additives | dsstox identifiers | 9 matched regulatory source group(s)

Substance Identity

Resolved identifiers used to render this food-safety record.

Substance name

Calcium hydroxide

CAS

1305-62-0

E-number

E526

DTXSID

DTXSID7034410

PubChem CID

6093208

Evidence tier

Indexable evidence set (14)

SOURCE EU Commission FDA | Health Canada | Codex Alimentarius

Multi-Jurisdiction Comparison

Side-by-side status rows for the same resolved substance across public food regulators.

Jurisdiction	Authority	Status	Evidence
European Union	EU Commission	PUBLISHED	EU additive listing; Annex II entry
Canada	Health Canada	Listed	Acidity regulator
Codex	Codex Alimentarius	Listed	Acidity regulator; Firming agent

SOURCE EU Commission EU Food Additives | EU Food Additives Database

EU Food Additive Status

EU Commission food-additive listing rows from eu_food_additives.

Jurisdiction	E-number	Status	Type	Name	Note
European Union	E526	PUBLISHED	substanceFAD	Calcium hydroxide	-

SOURCE EU Commission EU Annex II Authorised | EU Food Additives Database

EU Annex II Authorised Uses

Authorised additive rows and use conditions from EU Annex II tables.

Jurisdiction	E-number	Name	INS	Policy item	Note
European Union	E526	Calcium hydroxide	-	POL-FAD-IMPORT-3223	-

Conditions and restrictions

Jurisdiction	Food category	Restriction	Comment	Source
European Union	13.1.3 Processed cereal-based foods and baby foods as defined by Regulation (EU) No 609/2013	quantum satis	only processed cereal based foods and baby foods, only for pH adjustment	EU Annex II Union List
European Union	-	quantum satis	only for pH adjustment	EU Annex II Union List
European Union	13.1.3 Processed cereal-based foods and baby foods as defined by Regulation (EU) No 609/2013	quantum satis	only processed cereal based foods and baby foods, only for pH adjustment	EU Food Additives Database
European Union	-	quantum satis	only for pH adjustment	EU Food Additives Database
European Union	1.9 Edible caseinates	quantum satis	-	EU Food Additives Database

SOURCE Codex Alimentarius Codex GSFA

Codex GSFA Status

Codex Alimentarius GSFA permissions and maximum-use rows.

Jurisdiction	INS / E-number	Function	Food category	Max level	Notes
Codex	526	Acidity regulator; Firming agent	01.2.1.2 Fermented milks (plain), heat-treated after fermentation	GMP	Except for use in plain fermented milks and drinks based on fermented milks that are heat treated after fermentation conforming to the Standard for Fermented Milks (CXS 243-2003)...
Codex	526	Acidity regulator; Firming agent	01.8.2 Dried whey and whey products, excluding whey cheeses	GMP	Excluding products conforming to the Standard for Dairy Permeate Powders (CXS 331-2017).
Codex	526	Acidity regulator; Firming agent	02.2.1 Butter	GMP	-
Codex	526	Acidity regulator; Firming agent	13.1.1 Infant formulae	2,000 mg/kg	As consumed.; Within the limits for sodium, calcium, and potassium specified in the Standard for Infant Formula and Formulas for Special Medical Purposes Intended for Infants (CXS...
Codex	526	Acidity regulator; Firming agent	13.1.2 Follow-up formulae	GMP	As consumed.; Maximum use level is expressed as mg additive/L of food.
Codex	526	Acidity regulator; Firming agent	13.1.3 Formulae for special medical purposes for infants	2,000 mg/kg	As consumed.; Within the limits for sodium, calcium, and potassium specified in the Standard for Infant Formula and Formulas for Special Medical Purposes Intended for Infants (CXS...
Codex	526	Acidity regulator; Firming agent	13.2 Complementary foods for infants and young children	GMP	Excluding products conforming to the Standard for Canned Baby Foods (CODEX STAN 73- 1981).

SOURCE Health Canada

Health Canada Status

Health Canada food-additive permissions by functional class and food scope.

Jurisdiction	Class	Permitted foods	Maximum level	List
Canada	Acidity regulator	(a) Bacterial cultures	(a) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(b) Beer	(b) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(c) Canned peas	(c) 100 ppm	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(d) Grape juice	(d) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(e) Ice cream mix; Ice milk mix	(e) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(f) Infant formula	(f) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials
Canada	Acidity regulator	(g) Unstandardized foods	(g) Good Manufacturing Practice	List of Permitted Acidity Regulators and Acid-Reacting Materials

SOURCE EU Commission EU Food Contact Materials

EU FCM Substances

EU food-contact material rows and migration-limit fields.

Jurisdiction	FCM no.	Ref no.	Substance	Use	SML	Regulation
European Union	18	34475	aluminium calcium hydroxide phosphite, hydrate	additive/PPA	-	Regulation (EU) No 10/2011, Annex I
European Union	394	41280	calcium hydroxide	additive/PPA	-	Regulation (EU) No 10/2011, Annex I
European Union	394	-	calcium hydroxide	-	-	Regulation (EC) No 450/2009, Register v1.1

SOURCE JECFA JECFA ADI

JECFA ADI Values

JECFA ADI records and evaluation years.

Jurisdiction	Chemical name	JECFA no.	CAS	ADI	ADI upper	Function	Evaluation year
JECFA	CALCIUM HYDROXIDE	-	1305-62-0	NOT LIMITED	-	ACIDITY_REGULATOR, FIRMING_AGENT	1965

SOURCE ingredients ghs classifications

Cross-Reference to Cosmetics / Chemicals / Pharma

Same-CAS public rows from adjacent Roots verticals where available.

SOURCE Cross-vertical comparison ingredients | ghs classifications

Cross-Vertical Regulatory Divergence

This substance has different regulatory treatment across food, cosmetics, and industrial use.

CosmeticsCalcium HydroxideEU status: restricted Industrial / GHSDangerHazardous Chemical Information System (HCIS), Safe Work Australia

SOURCE FAQPage JSON-LD public food renderer rows

Frequently Asked Questions

Food-use, safety, ADI, and cross-vertical answers mirrored into FAQPage JSON-LD.

What is Calcium hydroxide used for in food?

Calcium hydroxide appears in food-use rows as: Acidity regulator; Acidity regulator; Firming agent; Acidity regulator.

Is Calcium hydroxide / E526 safe?

This page does not assign a standalone safety verdict; it renders public regulatory evidence. ADI/reference value: ADI NOT LIMITED mg/kg bw. EU status evidence: PUBLISHED. US/FDA evidence: GRAS.

What is the ADI for Calcium hydroxide?

Calcium hydroxide has this ADI/reference value in the food-safety tables: ADI NOT LIMITED mg/kg bw. Source: WHO JECFA.

Is Calcium hydroxide also used in cosmetics?

Calcium hydroxide has a same-CAS cosmetics cross-reference: Calcium Hydroxide, EU status restricted.

Calcium hydroxideE526