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How to Read a Certificate of Analysis

AffordPure Team · March 7, 2024 · 6 min read
Third-party lab technician reviewing a CBD certificate of analysis report beside sample bottles
Independent lab results tie potency and safety testing back to a specific batch.

A Certificate of Analysis (COA) is a third-party lab report for a specific batch. It confirms what's in the bottle and helps you avoid low-quality products.

COA Checklist

1) Match the Batch

The report should match the exact product batch number you bought.

2) Verify Potency

Confirm the CBD and total cannabinoid values are in expected range.

3) Check THC

For full spectrum, verify legal compliance. For THC-free products, confirm non-detect where expected.

CBD potency panel comparing labeled cannabinoid content to measured lab values
Potency tables let shoppers confirm the bottle matches the advertised cannabinoid profile.

4) Scan Contaminants

Look for pass/fail or quantitation on:

Safety screening panel showing pesticides, heavy metals, solvents, and microbial checks
A complete COA should include contaminant screening, not just potency numbers.
  • Pesticides
  • Heavy metals
  • Residual solvents
  • Microbials

5) Confirm Date and Lab

Use recent reports from accredited, independent labs.

Why It Matters

Without a valid COA, label claims are difficult to trust. Reliable brands publish current reports for every batch and make them easy to find.