A COA Is Evidence, Not a Verdict
Building on the full panel testing and lab accreditation content discussed elsewhere in this publication, a certificate of analysis is only as useful as the reader's ability to interpret it. A green "pass" stamp is the start of a review, not the end.
What a Pass Does Not Tell You
Which standard it passed. A pass under one state's limits may not satisfy another's, as discussed in the pesticide action limit content.
Whether the sample represents the batch. Sampling method, sample size, and homogeneity all affect whether one result reflects the whole lot.
Whether the method suits the product. Complex matrices such as beverages and emulsions can interfere with analysis unless the method is validated for them.
Whether the lab is independent. Results from a lab with a financial tie to the producer deserve more scrutiny than those from an independent, accredited lab.
Details Worth Checking Line by Line
- Batch or lot number that matches the product in hand
- Test date and report date, relative to the production date
- Limits of quantitation for each analyte, so you know what "not detected" really means
- Total THC calculation shown with its inputs
- Lab accreditation scope that covers the specific tests performed
- Signature, report ID, and a way to verify authenticity with the lab
Red Flags
Be cautious of reports missing batch identifiers, showing round or repeated numbers across batches, listing only potency, or lacking contact information for the lab.
Building a Review Habit
Create a short COA checklist for your team, and require that every batch entering your supply chain meets it before use. Keep reviewed COAs with batch records so you can show your diligence if questions arise.
Low Gravity Hemp encourages customers to scrutinize our COAs and supports verification directly with the lab. Contact us for a walkthrough of a sample report.
