How to read a cannabinoid COA

A cannabinoid Certificate of Analysis (COA) is a laboratory report for a tested sample. Before relying on one, confirm that its product name, sample or batch identifier matches the finished item—not only a raw ingredient used to make it.

Seven checks on a cannabinoid COA

1. Product or sample name. It should clearly connect to the finished item being offered.
2. Batch or lot identifier. Compare it with the package or current stock where that identifier is available.
3. Laboratory identity. Look for the laboratory name and contact or accreditation information shown on the report.
4. Report and test dates. Dates help establish which sample was tested and whether the report is current for the batch.
5. Test method and units. Confirm how results are expressed, such as percentage, milligrams per gram or milligrams per unit.
6. Cannabinoid panel. Review the compounds tested and note whether a result is quantified, not detected or below a reporting limit.
7. THC result and product category. Review the reported delta-9 THC result against the current requirement for that finished-product category.

Finished-product COA versus raw-material COA

A raw-material COA describes the ingredient sample sent to the laboratory. It may not show the composition of the finished vape, edible, oil or other product after manufacturing. For a purchase decision, ask for documentation tied to the finished product or the relevant final batch.

What a COA cannot prove

A COA reports results for the submitted sample. It does not certify every unit, replace current official rules or prove that a marketing name is legal. Japan's requirements are substance- and product-specific, so use the report together with current official information. See our visitor guide to CBD legality and residual-THC limits in Japan.

What we check before offering a product

• The document identifies the finished product or relevant batch.
• The product details and report information are consistent.
• The laboratory, dates, test method and reporting units are visible.
• We review the applicable current requirements and official information.
• The product offers an experience worth putting on our menu.

Ask before you order

If you want to see the documentation or are unsure which product matches the high you want, message us first. We can show the available product information and recommend from current stock before you confirm.

Adults 20+ only. Effects vary by product and person. Use responsibly.