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How to read a certificate of analysis (COA)

Updated 2026-07-11

Why the COA is decisive

A certificate of analysis (COA) attests to a lot's real rates, measured in a laboratory. In B2B, it's the document that protects your customs compliance and your resale.

Fields to check

  • CBD level: the lot's commercial value.
  • THC level: the regulatory threshold — it must respect your delivery country's limit.
  • Date and laboratory: a recent COA, issued by an identified lab.
  • Lot number: it must match the offered lot exactly.

Best practice

Always compare the declared rate to the measured rate. On Canna-Tech, "Hub-controlled" lots show a rate verified on entry to our Swiss logistics hub.

Informational content, not legal advice — an evolving situation, to be validated by a lawyer.

How to read a certificate of analysis (COA) — CBD-Exchange