Why Lab Testing Matters
Lab testing is the difference between trusting a label and verifying it. Every batch of cannabis we sell is tested by an independent, accredited third-party laboratory. They verify cannabinoid content (so the THC-A% on the label is real), identify the terpene profile, and screen for dangerous contaminants. Without testing, you're taking a seller's word for it. With testing, you have data.
What Gets Tested
Potency — THC-A, Delta-9 THC, CBD, CBG, CBN, and total cannabinoid content, measured via High-Performance Liquid Chromatography (HPLC).
Terpenes — Individual terpene concentrations, showing the aromatic and effect profile.
Pesticides — Screening for residual pesticides that shouldn't be present.
Heavy Metals — Lead, arsenic, cadmium, and mercury testing.
Microbials — Mold, yeast, E. coli, and Salmonella screening.
Residual Solvents — For concentrates and extracts: ensuring no harmful chemicals remain from extraction.
What is a COA?
A COA (Certificate of Analysis) is the official lab report for a specific batch of cannabis. It's a multi-page document that shows every test result. The COA includes the lab's name and accreditation, the date of testing, the batch number, and detailed results for potency, terpenes, and contaminant screening. Every product on our site links to its COA so you can verify the numbers yourself. If a seller can't provide a COA, that's a red flag.
Source: American Council for Independent Laboratories (ACIL)
Reading the Potency Section
The potency panel shows cannabinoid percentages by dry weight. Key numbers to look at:
THC-A% — The main number. Multiply by 0.877 to estimate how much active THC you'll get after heating (the rest is lost as CO₂).
Total THC — Some labs calculate this for you: (THC-A × 0.877) + Delta-9 THC.
CBD% — If present, indicates a more balanced experience.
Total Cannabinoids — The sum of all detected cannabinoids. Higher isn't always better — it's about the ratio.
Reading the Terpene Section
The terpene panel lists individual terpenes as a percentage of total weight. Look for:
Dominant terpene — The highest number tells you the primary character (myrcene = relaxing, limonene = uplifting).
Total terpene content — Above 2% is considered "terpy" and usually means rich flavor and pronounced effects.
Profile diversity — More terpenes in significant amounts (>0.1%) generally means a more complex, nuanced experience thanks to the entourage effect.
Reading the Safety Section
The contaminant panels should all show "Pass" or "ND" (Not Detected). Specific things to check:
Pesticides — All should be ND or below the action limit.
Heavy metals — Lead, arsenic, cadmium, mercury — all should pass.
Microbials — Total yeast/mold count should be within limits. E. coli and Salmonella should be absent.
If any contaminant panel shows "Fail," that product should not be consumed. On our site, every product displays a "Lab Verified — PASS" badge linked to the full COA.
If the flower looks and smells good, you don't need to check the lab report.
Visual inspection and aroma can tell you about cure quality and terpene presence, but they cannot detect pesticide residues, heavy metals, mold spores, or accurately gauge THC content. A 2020 study published in PLOS ONE found that consumer perception of quality based on appearance did not correlate with laboratory-measured potency or purity. Lab reports exist because the most important things about cannabis are invisible to the naked eye.
Transparency You Can Trust
Every product on our site links to its lab report. Tap the "Lab Verified" badge on any product page to see the full COA.
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