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Are Triacetin and Diacetin (E1518, E1517) Halal?

It depends on what the label says.

Halal if verified
Medium confidence About this ruling

About this ruling

Condition
Source disclosure is incomplete
Evidence confidence
Medium means a certifier is named, but the link lands on its portal rather than on a listing for this item. Use this page as orientation, then read the pack in your hand.
How we score High, Medium, and Low

Reviewed

E1517 and E1518 are glycerol acetates used as carriers and humectants in flavours and chewing gum.

Next step Treat triacetin and diacetin as Halal if verified. They are acetic esters of glycerol, so they inherit glycerol's plant-versus-animal question. How to verify
Scan a label

Additive identity

E-number
E1517, E1518
Codex INS
INS 1517, INS 1518
Function
humectant
Family
glycerol esters
EU Union list
authorised
Names
Glyceryl diacetate; Diacetin; Glyceryl triacetate; Triacetin

Possible source pathways

The finished molecule can be identical across feedstocks. The Halal ruling follows the pathway, not the code alone.

E1517 Possible source pathways

  • plant Halal Typical Usual food grade is vegetable glycerol or plant oil.
  • animal Halal if verified Glycerol or fatty acids can be split from tallow. Pork or non-zabiha fat is haram.
  • undisclosed Halal if verified Typical Labels rarely name the glycerol. Treat as mashbooh until a plant, vegan, or Halal claim settles it.

E-number database Compare this family

How to verify

  1. Match E1517, E1518, triacetin, or diacetin.
  2. Prefer vegetable-glycerol or Halal-certified flavour houses.
  3. See glycerin for the parent question.

Quick checks

  • Triacetin and diacetin are glycerol plus acetic acid: the glycerol source is the question.
  • They are not ethanol.
  • An unmarked label is Halal if verified; a vegan or Halal mark settles it.

What decides the answer

  • Vegetable-glycerol triacetin / Halal-certified flavour

    Halal

  • Unspecified E1518

    Halal if verified

  • Animal glycerol: Halal if verified or haram if pork

Why this ruling

Triacetin (E1518) and diacetin (E1517) are made by joining glycerol to acetic acid, the acid in vinegar. They are clear, slightly oily liquids used as carriers for flavourings and as humectants that keep foods soft.[2][4] US rules list triacetin as a generally recognised food substance.[1]

Where the question is

The acetic acid part raises no question. The glycerol backbone is the same substance as glycerin, and it can be made from vegetable oil, made synthetically, or split from animal fat. So these follow glycerin (E422):

  • From vegetable or synthetic glycerol → Halal.
  • From the fat of a Halal-slaughtered animal → Halal.
  • From pork fat or non-Halal slaughter → not Halal.
  • Not stated → Halal if verified.

Where you will find them

  • Flavourings, as the liquid the flavour is dissolved in, alongside propylene glycol and ethanol.
  • Chewing gum, where triacetin keeps the gum base soft.
  • Baked goods and sweets, in small amounts to keep them moist.

Because flavourings rarely list their carrier, triacetin is often invisible on a label. A Halal certification on the product covers the flavourings and their carriers.

The other common carriers, propylene glycol, triethyl citrate and benzyl alcohol, have no source question; see E1520. For the glycerol-based emulsifiers that share the same question, see E472.

Frequently asked questions

Is triacetin Halal?
Halal when its glycerol is vegetable or synthetic, which is most supply. The label does not say, so it is Halal if verified.
Is triacetin alcohol?
No. It is an ester of glycerol and acetic acid, not ethanol.
Where is triacetin used?
As a carrier for flavourings, a softener in chewing gum and a humectant in some sweets; it is often inside a “flavouring” and not listed.
Is diacetin different?
Diacetin (E1517) has two acetic groups instead of three; the glycerol question is the same.

Scholarly view

Same ruling family as glycerin: plant glycerol is Halal; undisclosed glycerol is mashbooh.

Sources

Named Islamic, certifier, manufacturer, and regulatory sources used on this page. Inline markers like [1] jump here. Retrieval dates show when we last checked the live URL. Editorial methodology.

Certifier / jurisdiction

  1. SANHA — E-numbers

    SANHA Retrieved

    Certifier: SANHA

    Certifier E-number literacy; not a product certificate.

Regulatory / labelling

  1. 21 CFR § 184.1901 triacetin

    U.S. eCFR Retrieved

    U.S. identity / GRAS or colour-additive listing—not a Halal ruling.

  2. Regulation (EC) No 1333/2008 on food additives

    European Union Retrieved

    Union-list identity—not a Halal certificate.

  3. European Commission — Food additives

    European Commission Retrieved

    EU additive literacy hub.

  4. Codex GSFA online

    FAO / WHO Codex Retrieved

    Codex INS / GSFA identity.

  5. U.S. FDA — Food additives

    U.S. Food and Drug Administration Retrieved

    US identity / labelling context—not a Halal ruling.

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