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Is Boric acid and borax (E284, E285) Halal?

Yes — this one is Halal.

Halal

High confidence About this ruling

About this ruling

Evidence confidence
High means this page cites a primary regulator listing and a named Halal certifier listing, retrieved 16 August 2026. That describes the quality of the sources on this page—not a Halal certificate for the pack or outlet in your hand.
How we score High, Medium, and Low

Boric acid and borax are inorganic boron salts.

Evidence at a glance

Named sources used for this page. Open the full Sources block for notes and citation numbers.

Source Type Retrieved
EFSA — Re-evaluation of boric acid and borates (E284–E285) European Food Safety Authority Regulatory / labelling
Regulation (EC) No 1333/2008 on food additives European Union Regulatory / labelling
European Commission — Food additives European Commission Regulatory / labelling
Codex GSFA online FAO / WHO Codex Regulatory / labelling
SANHA — E-numbers SANHA Certifier / jurisdiction
U.S. FDA — Food additives U.S. Food and Drug Administration Regulatory / labelling

Full Sources

Additive identity

E-number
E284, E285
Codex INS
INS 284, INS 285
Function
preservative
Family
preservatives
EU Union list
authorised
Names
Boric acid; Sodium tetraborate; Borax

Possible source pathways

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

  • mineral · Typical Halal Mineral or inorganic identity. Not meat, wine, or insect colour.

E-number database

White mineral powder standing in for boric acid

Why this ruling

Boric acid (E284) and sodium tetraborate / borax (E285) are Halal mineral preservatives with tightly limited EU uses.[2][4]

They do not settle caviar.

Where you'll find it

  • Limited EU caviar preservation

How to verify

1) Match E284, E285, boric acid, or borax. 2) The salt is Halal. 3) Caviar still needs a seafood ruling.

  • Borates → Halal minerals.
  • Rare on everyday packs.
  • Caviar still needs its own page.

Conditions for Halal

  • E284 / E285 as listed salts → Halal mineral
  • Caviar carrying them still needs a seafood read

Scholarly differences

A boron salt is not a fish ruling. Shoppers asking about caviar should open that page for species and slaughter-adjacent debates.

Frequently asked questions

Is borax Halal in food?
Yes as the additive (E285). EU food use is rare and specific.
Does it make caviar Halal?
No. The salt is Halal; caviar is a separate seafood question.

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

    Certifier: SANHA

    Certifier E-number literacy; not a product certificate.

    Retrieved:

Regulatory / labelling

  1. EFSA — Re-evaluation of boric acid and borates (E284–E285)

    European Food Safety Authority

    Substance identity—not a Halal certificate for a finished pack.

    Retrieved:

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

    European Union

    Union-list identity—not a Halal certificate.

    Retrieved:

  3. European Commission — Food additives

    European Commission

    EU additive literacy hub.

    Retrieved:

  4. Codex GSFA online

    FAO / WHO Codex

    Codex INS / GSFA identity.

    Retrieved:

  5. U.S. FDA — Food additives

    U.S. Food and Drug Administration

    US identity / labelling context—not a Halal ruling.

    Retrieved:

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Applies to
General ruling; confirm local labels, slaughter, and certification when relevant
Last reviewed