How to Read a Lab Report (COA)

Every reputable hemp product comes with a lab report. Most people never look at it — here’s how to read one in about a minute and know what you’re buying.

Updated July 2026 · iSmokee Orlando & Kissimmee

A Certificate of Analysis (COA) is the receipt that proves a product is what the label claims. Reputable brands test every batch with an independent lab and make the COA available — often via a QR code on the package. If a product doesn’t have one, that’s a red flag. Here’s what to look at.

1. Is it from a third-party lab?

The whole point is independence. The report should come from an outside, accredited lab — not the brand’s own kitchen. Look for the lab’s name and, ideally, an accreditation (ISO 17025 is the common one). A brand grading its own homework isn’t worth much.

2. Does the batch match?

Check that the batch or lot number on the COA matches the one on your product. Brands should have a current report for the batch you’re holding — not one from two years ago for a different run. An outdated or mismatched COA doesn’t tell you anything about what’s in your hand.

3. The potency panel (cannabinoids)

This is the part most people care about. It lists the cannabinoids and how much of each — usually as a percentage and/or mg per serving. Two things to check:

• Does it match the label? If the box says 25 mg of Delta-9 per gummy, the COA should back that up.
• The delta-9 THC number. For hemp products, delta-9 THC must be at or under 0.3% by dry weight to be compliant. The COA is where you confirm it.

4. The safety panels (this is the important part)

Potency is nice, but the tests that actually protect you are the contaminant screens. A good COA shows “Pass” on:

• Pesticides — none above allowable limits.
• Heavy metals — lead, arsenic, cadmium, mercury.
• Residual solvents — leftovers from extraction.
• Microbials / mold — especially relevant for flower.

If any of these are missing or marked “Fail,” skip the product. Clean potency means nothing if it’s contaminated.

Quick checklist

You don’t need to be a chemist. In under a minute, confirm: independent lab ✓, matching batch ✓, potency matches the label ✓, delta-9 ≤ 0.3% ✓, safety panels all “Pass” ✓. That’s a legit product.

Everything on our shelves — flower, CBD & Delta, gummies — is third-party tested, and we’re happy to pull up a COA in store if you want to see the numbers before you buy. That’s the whole idea.