Australian Mānuka Honey COA, Batch Testing & Traceability

01 · Start with scope

What a Certificate of Analysis is—and is not

A COA is best treated as a report about a particular submitted sample. It usually records what was tested, how it was tested, the reported result and identifying information supplied by the client or laboratory. The exact format differs between laboratories, customers, schemes and destination markets. “COA” is therefore a practical commercial label, not a promise that every document with those three letters contains the same fields or has the same legal status.

The most important first question is not “Does a COA exist?” It is “What sample does this report describe, and how does that sample connect to the product being offered?” If the report number is real but the sample identity cannot be tied to the offered lot, the report may be accurate while still being commercially irrelevant to your purchase.

A COA also has boundaries. It does not, by itself, establish where the honey was produced, who owned it at each stage, whether a retail label complies in the destination country, whether every contractual specification was met, or whether the whole shipment is homogeneous. It should not be extended into a health or therapeutic claim. Those questions may require other records, an agreed sampling plan, further testing or destination-specific advice.

Independent laboratory work can strengthen confidence in a measured result. In Australia, NATA describes ISO/IEC 17025 accreditation as a framework supporting the validity and reliability of testing and calibration outputs. But accreditation is not a blanket statement that every method offered by a laboratory is accredited. Check the facility and the relevant activity in the current NATA scope listing, or the applicable accreditation body in the laboratory’s jurisdiction.

02 · Separate the documents

The five records a buyer may need to distinguish

Buyers sometimes ask for “the certificate” when they actually need several different forms of evidence. Treating them as separate documents makes gaps easier to see. The list below is a buyer framework, not a universal legal pack. A contract, retailer protocol, certification scheme or importing authority may require more, less or different evidence.

Origin deserves particular care because the meaning of “grown in”, “produced in”, “made in” and “packed in” is not interchangeable. The ACCC identifies honey as a priority food for Australian country-of-origin labelling and states that origin claims must be true, accurate and based on reasonable grounds. That is a labelling and substantiation question; a chemistry result alone is not a substitute for the origin evidence behind the claim.

Likewise, the Australia New Zealand Food Standards Code is legislation, while private association criteria and buyer specifications are different layers. A private scheme may add useful requirements, but it should be named accurately rather than described as “the law”.

03 · Read the whole page

How to read a COA line by line

Begin at the top and work down. Do not jump straight to the largest number or a marketing grade. Each field answers a different verification question, and qualifiers in a footer can materially change the meaning of a result.

Where the result is near an acceptance limit, ask how measurement uncertainty and rounding are handled in the decision rule. Where the report says “not detected” or “below reporting limit”, do not translate that into absolute absence without understanding the method’s reporting limit. If a report carries a conformity statement, identify the exact standard or customer specification behind it.

04 · Keep chemistry proportionate

What MGO, DHA, leptosperin and HMF can—and cannot—tell you

MGO. Methylglyoxal is a measurable chemical constituent that may be reported as a concentration, commonly in milligrams per kilogram. For a buyer, the disciplined approach is to compare the analyte, method, unit, result, date and batch with the agreed specification or named grading scheme. A concentration should not be converted into an unapproved medical promise, and one batch result should not be assumed to describe future batches.

DHA. Dihydroxyacetone occurs in Leptospermum nectar chemistry and can form MGO over time. A peer-reviewed Australian study investigated the DHA-producing capability of 55 of the 84 Leptospermum species native to Australia. That is a study of species-level nectar chemistry; it is not a statement that every Australian honey, every harvest or a future SELVEH product has a particular result.

Leptosperin. Leptosperin is used as a chemical marker in some research and authenticity frameworks. Its presence or concentration should be read within the method and the named scheme applying it. The Australian Manuka Honey Association notes that it investigates leptosperin in some authenticity work but does not require leptosperin testing on every member batch. That is AMHA’s scheme position, not a universal law or a claim of SELVEH participation.

HMF. Hydroxymethylfurfural is a quality parameter associated with heating and storage history in honey analysis. The Codex Standard for Honey lists HMF in an annex of additional composition and quality factors. Crucially, the Codex document says that annex is intended for voluntary application by commercial partners, not governments. A buyer should therefore confirm the applicable destination law, contract and method instead of treating a Codex annex value as an automatic Australian legal pass or fail.

These parameters answer different questions. A high or low number for one analyte does not by itself establish the full botanical origin, absence of adulteration, country of origin, shelf-life, safety, compliance or suitability for a particular claim. Decide first what the commercial or regulatory question is, then select the evidence and method capable of answering it.

05 · Match identity across the release

Matching the chain: COA → batch → specification → label → shipment

The most useful traceability review is not a pile of documents; it is a sequence of matching identifiers and approved facts. The following buyer verification framework shows one way to test the chain. It is not presented as a universal statutory record set.

Work both directions. Starting from the shipment, can you reach the packed lot and the relevant COA? Starting from the COA sample, can you reach the specification and the actual goods? If a supplier blends, repacks or relabels product, ask how the original lot identity maps into the new packed lot. If several lots are combined, ask what sampling and release rule supports the finished batch.

For private schemes, inspect the scheme owner’s current rules and status rather than relying on a logo in a slide deck. AMHA states that its member suppliers maintain independent third-party COAs for all Mānuka honey batches they produce and market, together with batch traceability records. That statement is specific to AMHA member standards; it must not be generalised to every Australian supplier or to SELVEH.

Finally, identify which party controls each link. The laboratory controls its report. The producer or packer may control batch and packing records. The brand owner controls approved artwork. The exporter and importer control transaction records and destination compliance activities. A clean hand-off requires names, revision dates and responsibility—not just files in a shared folder.

06 · Know when to pause

Red flags before relying on a report

• Identity mismatch: the batch on the COA differs from the lot in the offer, label, packing record or shipment.
• Incomplete image: a cropped screenshot hides the report number, method, authorisation, scope statement or conditions.
• Missing unit or method: a number is promoted without the unit and analytical method needed to interpret it.
• Unverifiable laboratory: the facility, accreditation status or relevant scope cannot be independently confirmed.
• Undefined pass/fail: the report says “complies” without naming the specification, scheme, contract or law used.
• One result for every batch: a result from one sample is represented as permanent proof for other lots or future production.
• Origin by implication: chemistry, imagery or a packing location is used to imply an origin claim without the supporting chain.
• Scheme and law blurred: private membership, a mark or a customer protocol is described as mandatory government certification.
• Therapeutic leap: an analytical concentration is turned into a disease, treatment or individual health claim.
• Dates do not make sense: the report predates the relevant batch, follows shipment without explanation or refers to a stale specification.

A red flag is a prompt to investigate, not automatic proof of misconduct. Ask for the complete report, identify the missing link and record the response. If the issue affects food law, import eligibility, claims, safety or contract acceptance, use the relevant regulator, laboratory, accredited consultant or legal adviser for the destination market.

07 · Make the review repeatable

Buyer checklist before commitment

A repeatable checklist helps purchasing and QA teams reach the same questions before commercial pressure builds. At minimum, capture the offered product, lot identity, complete report, method and unit, applicable specification, laboratory scope, origin support, packing link, label status, destination requirements and unresolved evidence gaps.

Use the checklist as a conversation framework, then adapt it to your organisation’s risk, contract and market. For example, a retailer may require a supplier approval pack, an importer may need specific official certificates, and a private-label buyer may need artwork controls and change-notification terms. Do not assume a generic COA satisfies any of those obligations.

08 · Current-stage disclosure

What SELVEH can state at the current development stage

As at 17 August 2026, SELVEH’s first collection remains in development. This article is an educational buyer guide, not a product release document. SELVEH is not using it to claim a final SKU, MGO grade, batch specification, pack, price, supplier, laboratory, every-batch testing program, completed certification, export-ready shipment or available stock.

When a final product is selected, any public analytical or origin statement should be tied to the relevant evidence and batch. Until then, placeholders, concept imagery and buyer frameworks must remain visibly separate from real product records. The illustrative COA above contains no laboratory logo, signature, batch number or test result for exactly that reason.

Our publishing process, sourcing rules, correction pathway and boundary between education and product claims are set out in the SELVEH Editorial Standards. The intended product-documentation principles are described separately in Our approach, without treating future intent as a completed capability. Related journal notes explain how to verify batch documentation, how to verify Australian origin and traceability and how to interpret MGO grades without overstatement.