Calcium lactate

E number E327INS 327CAS 814-80-2

Used as an acidity regulator — Codex also lists it as emulsifying salt, firming agent, flour, treatment agent, thickener.

Calcium lactate is a firming agent, acidity regulator and calcium source, used in canned fruit and vegetables and in cheese. It is also the calcium salt used in spherification.

Where it is and isn’t permitted

Status of Calcium lactate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted21 CFR 184.1207retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFAPermitted, with conditions

12 food categories

highest permitted level 10,000 mg/kg

Show every food category
  • 01.2.1.2 Fermented milks (plain), heat-treated after fermentation — GMP
  • 01.4.1 Pasteurized cream (plain) — GMP
  • 01.4.2 Sterilized and UHT creams, whipping and whipped creams, and reduced fat creams (plain) — GMP
  • 04.2.2.7 Fermented vegetable (including mushrooms and fungi, roots and tubers, pulses and legumes, and aloe vera) and seaweed products, excluding fermented soybean products of food categories 06.8.6, 06.8.7, 12.9.1, — 10,000 mg/kg
  • 08.1.2 Fresh meat, poultry and game, comminuted — GMP
  • 09.2.2 Frozen battered fish, fish fillets and fish products, including molluscs, crustaceans, and echinoderms — GMP
  • 09.2.3 Frozen minced and creamed fish products, including molluscs, crustaceans, and echinoderms — GMP
  • 09.2.4 Cooked and/or fried fish and fish products, including molluscs, crustaceans, and echinoderms — GMP
  • 09.2.5 Smoked, dried, fermented, and/or salted fish and fish products, including molluscs, crustaceans, and echinoderms — GMP
  • 12.1.2 Salt substitutes — GMP
  • 13.2 Complementary foods for infants and young children — GMP
  • 14.1.5 Coffee, coffee substitutes, tea, herbal infusions, and other hot cereal and grain beverages, excluding cocoa — GMP
CXS 192-1995 Table Three, INS 327and 12 further provisionsretrieved 2026-09-07

What it is made from

Made by neutralising fermentation-derived lactic acid with a calcium base. It contains no milk despite the name.

  • Vegan
  • Vegetarian
CAS registry number
814-80-2
InChIKey
MKJXYGKVIBWPFZ-UHFFFAOYSA-L
PubChem
CID 13144

Every name it appears under

36 recorded names. A label may use any of them.

E number

  • E327

INS number

  • 327

CAS registry number

  • 5743-48-6
  • 814-80-2

As it appears in regulation

  • Calcium lactate

Other names

  • (+/-)-Lactic acid, calcium salt (2:1)
  • 2-Hydroxypropanoic acid calcium salt
  • 2URQ2N32W3
  • C6H10CaO6
  • Ca lactate
  • Calcium (as lactate)
  • calcium 2-hydroxypropanoate
  • Calcium 2-hydroxypropanoate (1:2)
  • calcium bis(2-hydroxypropanoate)
  • Calcium dilactate
  • calcium dl-lactate
  • Calcium lactate
  • CALCIUM LACTATE (1 G)
  • Calcium lactate (1:2)
  • Calcium lactate anhydrous
  • Calphosan
  • CAS-814-80-2
  • CCRIS 3669
  • Conclyte calcium
  • E 327
  • Hemicalcium L-lactate
  • HSDB 976
  • Ins No.327
  • INS-327
  • INS-327-
  • lactate calcium
  • Lactic acid, calcium salt (2:1)
  • Prequist powder
  • Propanoic acid, 2-hydroxy-, calcium salt
  • Propanoic acid, 2-hydroxy-, calcium salt (2:1)

Systematic names

  • calcium bis(2-hydroxypropanoate)

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07
  • gsfa retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/calcium-lactate.json