There's a lot of small print on a cannabis package, and most people never look past the THC number. Which is a shame, because the label is genuinely useful once you know what you're reading.

Start with the QR code

That little square on your package links to the product's Certificate of Analysis, usually just called the COA. It's the lab report for the specific batch you're holding — not a generic document for the brand or the strain, but results tied to that production run.

Scan it with your phone camera. It's the single fastest way to learn more about what you bought.

What's on the COA

A Certificate of Analysis typically includes:

• Cannabinoid content — the full breakdown, usually reported as percentages or milligrams per serving
• Terpene results, on many but not all reports
• Contaminant screening — the panels a licensed laboratory runs before a product can be sold
• The testing laboratory's name and the date the analysis was completed
• Batch or lot identifiers that tie the report back to your specific package

If you're comparing two similar products, pulling up both COAs side by side is the most honest comparison you can make.

What's on the package itself

The label carries its own useful details:

• Cannabinoid content for the product or per serving
• Batch number — worth noting if you find something you love and want to look for it again
• Package date, which for flower is a decent proxy for freshness
• Net weight and, for edibles, servings per package
• Ingredients and allergens
• Required Massachusetts warning statements and the state's product symbol

The batch number trick

Here's the thing most people don't do. When you find a flower you really like, write down the batch number, not just the strain name. Cannabis is an agricultural product, and the same strain from the same grower can vary noticeably between harvests. The batch number is how you find your way back to a specific one.

Just ask

If you'd rather not squint at a package in the parking lot, bring it to the counter. We'll pull up the COA, walk through the numbers with you and explain what's worth paying attention to. It takes two minutes and it makes your next purchase a lot more informed.

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Please consume responsibly. For use only by adults 21 years of age or older. Keep out of the reach of children. This product has not been analyzed or approved by the Food and Drug Administration (FDA). There is limited information on the side effects of using this product, and there may be associated health risks.