How we verify packaged products

What each result means

Certified

A valid certificate from a certifier whose standards fit your settings, linked to this product by us. It says nothing beyond what the certifier attests.

Clean

Every ingredient is covered by our reviewed halal rules, and the product data has been checked against the label. No certification is claimed: this is not the same as certified halal.

Doubtful

Something is unresolved: an ingredient whose source decides it, an ingredient we have no reviewed rule for yet, unreviewed data, or a high-risk product without a valid certificate.

Haram

A reviewed rule identifies a prohibited ingredient in the listed ingredients.

Unknown

There is not enough reliable information to evaluate this product.

How a result is decided

1. Certificate first. A product is Certified only when a certificate is valid today (both dates count), we have verified it at the certifier's or company's own source, the certifier is active, and a reviewer has confirmed that the certificate covers this exact product. For meat and poultry, the certifier's published slaughter standard must also match the meat standard you choose.
2. Then the ingredients. Without a certificate, we compare each listed ingredient with our rulebook. A reviewed rule that identifies a prohibited ingredient gives Haram. Anything unresolved gives Doubtful, with the specific reason.
3. High-risk categories. For products such as meat, where the deciding factor (how the animal was slaughtered) never appears on a label, the result cannot rise above Doubtful without a valid certificate.
4. Missing information is Unknown, never a guess. A failed label reading is never a positive result.

Verdicts come from fixed rules. We do not use AI to decide whether anything is halal. Where scholars differ, the result follows the madhab you choose; if you choose “not sure”, we either apply reviewed guidance and say so, or show Doubtful and explain the difference of opinion.

Where our information comes from

• Certificates come from certifiers' own published lists and official company sources, and each one is checked by us before it counts. Suggestions from shoppers or other databases are only leads for review.
• Ingredient lists come from labels we have checked, and otherwise from Open Food Facts (under the Open Database License) or USDA FoodData Central (public domain), which we label clearly. Photos sent by shoppers are reviewed before they are used. A shopper can also have a label photo read on their own phone for a quick check; that check is marked as not reviewed and is never better than Doubtful.
• Rules cite their sources, and each one links to our longer explainer where we have one.

The rulebook and its versions

Every ingredient rule is written, sourced and reviewed by a person before it can affect a result. Edits to a rule remove its reviewed status until it is reviewed again. Reviewed rules are published together as a numbered rulebook release, and results always use the current published release, never draft edits. Every result shows the rulebook version and the date it was evaluated, and we keep the full history of every rule.

How our halal rules are reviewed

HalalVouch's ingredient rules are researched using cited scholarly sources, halal certification standards and other relevant technical references. Each rule is reviewed and approved by HalalVouch's editor before it is published, and so is every certificate, product match and checked label. Every approval is recorded with when it was made.

HalalVouch is an independent information service, not a religious authority or halal certification body. Islamic scholars and certifiers may differ on certain ingredients and processes. Where a difference of opinion is documented in our sources, we explain it rather than present one position as universally accepted.

Our results reflect the available product information and our published rulebook. They are not a substitute for a halal certification or for guidance from a scholar you trust.

How often we update

• Certificate validity is re-checked every time a result is shown, and our records are synced nightly.
• Products people scan are re-checked against Open Food Facts weekly. If a recipe changes on a product we have reviewed, we mark it for re-review and keep the reviewed version until we decide.
• Rulebook releases are published when reviewed rules change.

Open data we use

Product names, photos and ingredient lists marked as coming from Open Food Facts are the work of Open Food Facts contributors. Their database is available under the Open Database License (ODbL) and their product photos under CC BY-SA 3.0; every product we show from them links to its Open Food Facts page. The product database we built from Open Food Facts data, including the corrections we make to it, is available under the same ODbL licence: email contact@halalvouch.com to request a copy.

Corrections

If a result looks wrong, email contact@halalvouch.com with the barcode and what you found (a photo of the label or certificate helps). We review every report, and when a correction is accepted the product's page and results update.

Our limits

HalalVouch presents evidence; we do not issue religious rulings. A Clean result means we found no concerns in the listed ingredients. It is not a halal certification. Manufacturers can change recipes and suppliers at any time, so check the label, and for a ruling on your own case, ask a scholar from your school of Islamic law. Looking for restaurants? See how we verify restaurants.