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 3rd-party lab report that confirms the chemical profile and safety of a product. For flower, the COA typically includes cannabinoids (like Total THC), moisture/water activity, and contamination screens. We post COAs for each batch sold so you can buy with confidence.

How to read your COA (Harrens Lab layout)

  1. Strain & Client — Verify the strain name, our shop name, and the test date.
  2. Batch / Sample ID — Matches the batch on your product label. This is your proof you’re viewing the exact lot.
  3. Total THC — Reported as a percent by weight. For flower, labs compute: Total THC = (THCa × 0.877) + Δ9-THC.
  4. Total Cannabinoids — Sum of all detected cannabinoids (THC, CBD, CBG, etc.).
  5. Moisture / Water Activity — Indicates proper curing & storage. Excess moisture can affect freshness.
  6. LOD/LOQ — Limits of detection/quantitation. If a compound reads ND (Not Detected), it’s below the instrument’s limit.

Note: Values vary by batch. Always check the batch number and test date printed on your product label.

Where to look on COA reports:

  • Summary panel (top-right): Total THC, Total Cannabinoids, Moisture, and “Complete/Pass”.
  • Cannabinoids table: Detailed mg/g and % for THCa, Δ9-THC, CBD, CBG, etc.
  • Footer: Methods (HPLC), formulas, and accreditation blurb (ISO 17025, etc.).

🌿 Plain English: Don’t trip too hard on THC% alone. The high comes from how it burns and the mix of terps—not just one number.

🔬 Science Talk: Total THC is calculated as (THCa × 0.877) + Δ9-THC. When you spark it, THCa converts into Δ9-THC, and terpenes steer the effects. That’s why the ride feels way bigger than the lab % might suggest.

💬 Real Talk: People say our THCa flower smacks harder than dispensary “medical” bud— but for pennies on the dollar. Fully Farm Bill legal, shipped to your door.

Why Trust SleepyCafe COAs?

✅ Farm Bill Compliant   •   🔬 3rd-Party Tested   •   📦 Fully Legal & Discreet

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COA FAQ

Are your COAs batch-specific?
Yes. We post a unique COA for each batch we sell. The label on your product lists the batch so you can match it to the COA.
What lab do you use?
We partner with accredited, third-party labs (e.g., Harrens Lab, ISO 17025). Reports include method notes and accreditation info.
What does “ND” mean?
ND = Not Detected (below the instrument’s detection limit). It doesn’t necessarily mean 0.000—it means too low to report reliably.
Why does my COA percent differ from other sites?
Different batches, labs, and calculation methods can yield different numbers. Always compare like-for-like (same batch and lab).

Quick Glossary

  • THCa — The acidic precursor to THC in raw flower; converts to Δ9-THC with heat.
  • Total THC — (THCa × 0.877) + Δ9-THC ; best single indicator of potency in flower.
  • Total Cannabinoids — Sum of all detected cannabinoids (THC, CBD, CBG, etc.).
  • LOD/LOQ — Instrument limits for detection/quantitation.
  • ND — Not Detected (below LOD/LOQ).
  • Moisture/Water Activity — Freshness & curing indicators.

Find your product’s COA: Open any product page and click View Certificate of Analysis in the Description.

Questions about COAs? Reach us via Live Chat or the Contact page—happy to help interpret any report.