How to Read a Cannabis Lab Report (COA) in 5 Minutes
A certificate of analysis looks intimidating, but five checks cover everything a shopper needs.
The five checks
- Match: does the COA batch number equal the package batch code?
- Date: was it tested within the last year?
- Potency: does total THC line up with the label within ~10%?
- Pass/fail lines: pesticides, metals, microbials all marked pass or ND (not detected)
- Lab: is it an accredited independent lab (ISO 17025)?
Red flags in a COA
- Blanket ‘pass’ with no numbers
- Potency wildly above label claims (marketing labs exist)
- Missing panels for solvents on extracted products
- No lab name or accreditation
Quick answers
What is ND on a lab report?
Not detected – the compound is below the instrument’s detection limit; a good sign.
Do COAs expire?
They describe one batch at one time; use-by windows still apply to the product itself.
Ready to browse? See the full range in the shop, or start with vape pens and edibles.
This article is for informational purposes only, for adults (18+). Cannabis laws differ by country – always follow the rules where you are and use responsibly.
