Quality · 8 min
Understanding an Olive Oil COA
How professional buyers can read a certificate of analysis without confusing a test result with a complete supply guarantee.
What a COA establishes—and what it does not
A certificate of analysis records results for an identified sample or lot at a stated time. It can support category, purity and specification review, but only when the lot reference, laboratory, date and methods are clear.
A COA does not by itself prove current stock, ownership, certification scope, traceability of every transfer or conformity after loading. Those questions need their own records and contractual controls.
- Match the COA lot code to the sample and commercial documents
- Check analysis and issue dates
- Identify the laboratory and test methods
- Confirm units, limits and pass/fail basis
Read the result against the right benchmark
A result becomes commercially useful only when compared with an agreed specification and the regulation or trade standard applicable to the destination. Legal category limits and a buyer’s tighter internal limits are not necessarily the same.
Free acidity alone does not establish extra-virgin classification. Oxidation indicators, UV absorbance, purity tests and sensory assessment for virgin oils may also matter.
- Agreed product category
- Destination-market rules
- Buyer-specific tolerances
- Sensory assessment where applicable
Connect the document to sampling
The strongest document trail links the COA to a representative sampling plan: where and when the sample was taken, who sealed it, which lot or tank it represents and whether a retained counter-sample exists.
For a proposed transaction, buyers should agree how pre-shipment and loading samples relate to acceptance, claims and any right to re-test.
What to attach to an RFQ
A reference COA helps communicate the target profile, even when it is not the certificate for the future supply. Mark it clearly as a reference and remove confidential information that is not needed for initial qualification.
Attach a specification or reference COA to the AGRO OLEA RFQ to define the target profile. The documents applicable to a proposed supply are then reviewed with the commercial brief.