How to Read Cannabis Lab Results
Every legal cannabis product in New Jersey is tested by a third-party laboratory. The results — called a Certificate of Analysis (COA) — tell you exactly what is in the product. Here is how to read them:
Cannabinoid Profile
This section lists every detectable cannabinoid and its percentage. The most important numbers are Total THC and Total CBD. For flower, Total THC is calculated as: (THCA x 0.877) + Delta-9 THC. This accounts for the fact that THCA converts to THC when heated, but loses about 12.3% of its mass in the process. A flower labeled at 25% THCA with 0.5% Delta-9 THC has a total potential THC of about 22.4%.
Terpene Profile
Not all lab tests include terpene analysis, but the good ones do. This section lists the dominant terpenes and their concentrations. Total terpene content above 2% is considered high and usually indicates a flavorful, aromatic product. The specific terpenes present tell you much more about the expected effects than the sativa/indica label. See our terpenes guide for what each one does.
Contaminant Testing
Lab results also include safety testing for pesticides, heavy metals (lead, arsenic, cadmium, mercury), residual solvents (for concentrates), mycotoxins, and microbial contamination. All of these should show "Pass." This is one of the strongest arguments for buying from licensed dispensaries — every product on our shelves at Kush Connection has cleared these safety tests. Unregulated products have no such guarantee.
What to Look For
Rather than chasing the highest THC number, look for products with a cannabinoid profile that matches your goals and a robust terpene profile (at least 1-2% total terpenes). Check that all contaminant tests show "Pass." And do not be afraid to ask your budtender to walk you through a COA — we are happy to translate the science into practical guidance.