A Certificate of Analysis (COA) is one of the most important tools for transparency in the hemp industry. But for many consumers, the document looks scientific and overwhelming. Let’s break it down simply.
What Is a COA?
A COA is a third-party lab document that verifies the contents of a hemp product. It confirms:
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the sample was tested
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the results were independently measured
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the product meets safety standards
A COA isn’t optional — it’s proof of accountability.
What Labs Usually Test For
Depending on product type, a COA may list:
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cannabinoid profile
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terpene profile
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heavy metals
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microbial safety
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pesticide panel
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residual solvents
Not every product needs all tests, but responsible brands test for what matters.
How to Read It
Look for:
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matching batch numbers
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clear lab name
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pass/fail sections
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harvest or manufacturing dates
COAs shouldn’t feel hidden — they should be easy to access on the brand’s site.
Why Consumers Should Care
COAs protect you. They show the brand invests in quality and transparency — not shortcuts.