Food additive databasenutrient (fortification), processing agentChecked 2026-10-02
Calcium Hydroxide (Slaked Lime) 水酸化カルシウム（別名消石灰）
Designated additivePermitted in the EU (E526)Used in 1 product on this site
- Purpose
- nutrient (fortification), processing agent
- On the label
- “水酸化カルシウム” (calcium hydroxide), “水酸化Ca” (Ca hydroxide; labeling is exempt when used for nutrient fortification)
- Name in the List of Designated Additives
- 水酸化カルシウム（別名消石灰） (No. 233)
In Japan
- Used as a fortifier that supplements calcium and as a manufacturing agent in food production processes. Under the standards for use, it can be used only where essential to manufacturing or processing and for nutritional purposes, and the amount is up to 1.0% of the food as calcium (excluding foods bearing special dietary use labeling).
- It is included among additives that may be used for nutrient fortification (minerals), and labeling is exempt when it is used for that purpose. The simplified name when written by substance name is “水酸化Ca” (Ca hydroxide).
Japan's standards for use
- Up to 1.0% of the food as calcium (excluding foods bearing special dietary use labeling).
- Only where essential to food manufacturing or processing and when used for nutritional purposes.
This is a summary of the standards for use. See the source list for the exact conditions.
In the EU
- It is on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II) as E526.
Products on this site that contain it
| Product | As written on the label |
|---|---|
| アイクレオ バランスミルク（大缶）アイクレオ（江崎グリコ） | 水酸化カルシウム |
Product pages are in Japanese for now.
Sources
- List of Designated Additives — Japan Food Chemical Research Foundation (Japanese)
- Standards for use and storage of each additive — Japan Food Chemical Research Foundation (Japanese)
- EU food additive database (Japanese translation) — MAFF (Japanese)
- Regulation (EC) No 1333/2008 on food additives — EUR-Lex
- 消費者庁「食品表示基準について」別添 添加物関係（簡略名・用途名併記・一括名・栄養強化の範囲） (Japanese)
Checked 2026-10-02. Rules and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.
This page lists facts stated in laws and in evaluations by public bodies; it is not a safety verdict. Additives used in Japan are approved by the government, which sets the foods and amounts they can be used in. The ADI is a guide to the amount that is considered safe to take every day over a lifetime.