The Certificate of Analysis is the most important document in cannabis — the only way to independently verify what is actually in a product. Most consumers have never read one. This guide explains every section.
What Is a COA?
A COA is a document from an accredited third-party laboratory confirming chemical analysis of a specific batch. Responsible brands like West Coast Treez include a QR code on every product linking to the batch-specific COA.
Section 1: Sample Information
Identifies the batch number, sample date, product type and testing laboratory. Verify the lab holds a current state licence — unlicensed lab results are meaningless.
Section 2: Cannabinoid Profile
- THC (Delta-9) — Primary psychoactive cannabinoid, percentage by weight
- THCA — Non-psychoactive acid precursor. Total THC = (THCA × 0.877) + THC
- CBD, CBG, CBN, CBC — Minor cannabinoids contributing to the entourage effect
Section 3: Terpene Profile
Total terpene content above 2% indicates high-quality flower with complex effects. Key terpenes: myrcene, limonene, caryophyllene, pinene, linalool.
Section 4: Safety Panels (Most Critical)
- Pesticides — Any “Fail” is a serious red flag
- Heavy metals — Lead, arsenic, cadmium, mercury must pass
- Residual solvents — Critical for extracts and vapes
- Microbials — Mould, yeast, E. coli, Salmonella screening
View West Coast Treez lab results at https://westcoasttreez.us/lab-results.
Premium Cannabis — Lab Tested
Shop West Coast Treez — Premium Quality, Verified Purity
Every product is third-party lab tested with a Certificate of Analysis. Flowers, vapes, concentrates and edibles — shipped discreetly across legal US states.
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View Lab Results
Must be 21+ to purchase. Available in CA, OR, WA and other legal states.
💰 West Coast Treez Pricing
- Smalls / Budget Flower: starting at $35
- Premium Flower (1/8 oz): from $45
- Vape Cartridges (1g): from $40
- Pre-Rolls: from $12
- CBD Flower: from $30
Free shipping on orders over $100. Minimum order $100.
Frequently Asked Questions
Is West Coast Treez legit?
Yes. West Coast Treez is a licensed cannabis brand operating in CA, OR, and WA. All products are lab-tested for potency and purity before shipping.
How do I place an order?
Browse the West Coast Treez shop, add your items (minimum order $100), and checkout securely. Orders ship discreetly.
What strains does West Coast Treez carry?
WCT carries a rotating menu of Indica, Sativa, and Hybrid strains, plus vape cartridges, pre-rolls, and CBD flower.
How long does shipping take?
Most orders arrive within 3–7 business days. Handling takes 0–1 business days.
What is the minimum order?
The minimum order is $100.
Ready to Order?
Lab-tested cannabis delivered discreetly to your door. Minimum order $100.
