Preservative
Is E231 (E231 2-Hydroxybiphenyl) halal?
Halal, if no alcohol is used as a solvent
Halal, if no alcohol is used as a solvent
What we know
Named sources are on this page. Classification: Source-dependent.
What we don’t know
The pack in your hand does not, by itself, name the raw material or process.
Why it matters
Doubtful until the source is known (mashbooh)
What to verify
For E231 in this product: is the source plant, synthetic, or animal? If animal, which species and slaughter method?
Source
Halal, if no alcohol is used as a solvent
Classification as published in the Halal Authority India food ingredient numbers reference, the additive table used by halal certifiers across South Asia. Cross-checked against the IFANCA Halal Shopper's Guide.
What to ask the manufacturer
A recognised halal mark or a vegan declaration can settle this instead. If you email the brand, send one specific question:
For E231 in this product: is the source plant, synthetic, or animal? If animal, which species and slaughter method?
Quick facts
| E-number | E231 |
|---|---|
| Name | E231 2-Hydroxybiphenyl |
| Additive class | Preservative |
| Classification | Source-dependent |
| Source last accessed | 2026-08-21 |
Common questions
Is E231 (E231 2-Hydroxybiphenyl) halal?
E231 2-Hydroxybiphenyl is classified as Source-dependent. Halal, if no alcohol is used as a solvent
Is E231 2-Hydroxybiphenyl halal or haram?
On the evidence cited on this page, E231 2-Hydroxybiphenyl is source-dependent. Doubtful until the source is known (mashbooh) Every position is attributed to a named certifier or scholarly body with a link, so you can verify it directly.
Why isn't there a single yes/no answer for E231?
Because the ruling depends on information the label does not carry — the source material, the production route, or which scholarly position you follow. This page shows each named position with a link so you can check it yourself.
Where does this page's information come from?
Every position on this page is attributed to a named certifier or scholarly body with a direct link, listed under 'What the sources say'. Muttoo aggregates and cites; it does not issue rulings.
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