What Is a COA and How Do You Read It?
A COA, or certificate of analysis, is a report from an independent lab showing exactly what is in a cannabis product. It covers the cannabinoid potency and whether the product passed screening for pesticides, heavy metals, residual solvents, and microbials. You read it by confirming it is recent, matches the product’s batch number, comes from an accredited third-party lab, and shows passing results. A real COA is the difference between trusting a label and verifying it, which is why reputable hemp brands publish one for every batch they sell.
A certificate of analysis is the receipt for a product’s quality. When a brand sends a batch to an independent lab, the lab measures two things and reports them on the COA. First is potency: how much of each cannabinoid, like Delta-9, Delta-8, CBD, or CBN, the product actually contains, which should match the label. Second is safety screening: tests for pesticides, heavy metals like lead, residual solvents left over from extraction, and microbials such as mold and bacteria. A clean product passes all of them.
Reading one is quick once you know what to look for. Check that the COA is recent and lists a batch or lot number that matches the product in your hand, not a generic sample. Confirm it comes from a named, accredited third-party lab rather than the brand’s own bench. Then scan the results: the potency should line up with the label, and every contaminant row should read pass, the pass or fail format the California Department of Cannabis Control requires of licensed labs. If a brand cannot show you a COA, or the numbers do not match, that is your answer. TribeTokes publishes a COA for every batch. This is also the fastest way to tell a real product from a counterfeit, so see how to spot a fake cart.
Frequently asked questions
What Is a COA and How Do You Read It?
A COA, or certificate of analysis, is a report from an independent lab showing exactly what is in a cannabis product. It covers the cannabinoid potency and whether the product passed screening for pesticides, heavy metals, residual solvents, and microbials. You read it by confirming it is recent, matches the product's batch number, comes from an accredited third-party lab, and shows passing results. A real COA is the difference between trusting a label and verifying it, which is why reputable hemp brands publish one for every batch they sell.
What does a COA test for?
Two things: potency, meaning how much of each cannabinoid is present versus the label, and safety, meaning screening for pesticides, heavy metals, residual solvents, and microbials like mold. A clean product passes every contaminant test.
How do you read a cannabis COA?
Confirm the date is recent and the batch number matches your product, check that a named accredited lab ran it, then read the results. Potency should match the label and each contaminant line should say pass.
What is a batch or lot number?
It is the code that ties a specific production run to its lab report. Matching the batch number on your product to the one on the COA is how you know the results actually describe what you bought, not a different sample.
Can a certificate of analysis be faked?
Unfortunately yes, which is why it helps when results are hosted by the testing lab itself or verifiable through the lab, not just a PDF. A reputable brand makes its COAs easy to find and check independently.
For more detailed information, read What’s In Your Vape.
This content is for informational purposes only and is not medical advice. Vaping is not risk-free. TribeTokes products are hemp-derived and contain less than 0.3% Delta-9 THC under the 2018 Farm Bill, and are intended for adults 21 and over. These statements have not been evaluated by the FDA.