Certificates of Analysis (COAs)
Independent lab reports for potency, purity, and compliance—posted for every batch we sell.
What is a COA—and why it matters
A Certificate of Analysis (COA) is a third-party lab report confirming a product’s composition and safety. For flower, it shows cannabinoids (like Total THC), moisture, and contamination results. We post COAs for each batch to maintain transparency.
How to read your COA (Harrens Lab layout)
- Strain & Client — Check strain name, our shop, and test date.
- Batch / Sample ID — Matches the batch printed on your product label.
- Total THC — (THCa × 0.877) + Δ9-THC.
- Total Cannabinoids — Sum of all detected cannabinoids.
- Moisture / Water Activity — Indicates curing and freshness quality.
- LOD / LOQ — Detection limits; ND = Not Detected.
Always check the batch number and test date on your label.
- Summary panel: THC %, cannabinoids, moisture, and pass/fail.
- Cannabinoids table: mg/g and % for THCa, Δ9-THC, CBD, CBG.
- Footer: Testing methods and accreditation info.
Plain English: THC% alone doesn’t define the experience—terpenes and burn quality matter too.
Science Talk: THCa converts to Δ9-THC when heated; terpenes steer the effects.
Real Talk: Many say our THCa flower hits harder than dispensary bud—fully Farm Bill legal.
Why Trust StreetStem COAs?
✅ Farm Bill Compliant • 🔬 Third-Party Tested • 📦 Legal & Discreet
Browse ProductsCOA FAQ
Are your COAs batch-specific?
What lab do you use?
What does “ND” mean?
Why does my COA % differ?
Quick Glossary
- THCa — Converts to Δ9-THC when heated.
- Total THC — (THCa × 0.877) + Δ9-THC.
- Total Cannabinoids — Combined total of all cannabinoids.
- LOD / LOQ — Detection and quantitation limits.
- ND — Not Detected.
- Moisture / Water Activity — Indicates freshness and curing quality.
Find your product’s COA: Open any product page and click View Certificate of Analysis in the description.
Questions? Reach us anytime—we’re happy to help interpret any report.
