A cannabis label can look like a wall of numbers, percentages, and abbreviations. But once you know what you’re looking at, it tells you most of what you need to choose well — often more than the strain name does. Here’s a plain-language guide to reading one.

THC — the number everyone looks at

THC (tetrahydrocannabinol) is the best-known compound in cannabis and the main one behind its intoxicating effects. On dried flower, it’s shown as a percentage of weight — you might see 18% or 25%. On edibles, oils, and other products, it’s shown in milligrams.

A higher THC number means a more potent product. It does not automatically mean a better one. Potency is just one factor, and a very high number can be a lot — especially if you’re newer to cannabis or trying an unfamiliar format.

CBD — THC’s counterpart

CBD (cannabidiol) is another major cannabinoid. Unlike THC, it isn’t intoxicating in the same way. Products range from almost no CBD to CBD-dominant, with plenty in between.

What’s useful when shopping is the ratio between the two. A product might be THC-dominant, roughly balanced (around 1:1), or CBD-dominant. That ratio shapes the overall character of the product as much as the THC figure on its own.

“THC” vs “Total THC”

You may notice a label listing both “THC” and “Total THC” — or a value called THCA. Without going deep into the chemistry: raw cannabis contains THCA, which converts into active THC when heated. Total THC accounts for that conversion, so it reflects what you’ll actually get when the product is used as intended.

The practical tip: when you’re comparing two products, compare Total THC to Total THC so you’re measuring the same thing.

Terpenes

Some labels list terpenes — the aromatic compounds responsible for cannabis’s smell, anything from citrus to pine to fuel to pepper. Terpenes are increasingly seen as an important part of why one product feels different from another, even at similar THC levels. If a label or a budtender highlights a terpene profile, it’s worth paying attention to.

The practical details

A label also carries the essentials that are easy to overlook:

  • Net weight or volume — how much product you’re actually getting.
  • Plant type — indica, sativa, or hybrid lean. (Here’s what those labels really mean.)
  • Packaged-on and best-before dates — fresher flower is better flower.
  • Licensed producer — who grew or made it.
  • The excise stamp — the provincial stamp confirming it’s legal, regulated, tested product.

Put it all together

Next time you pick up a jar or box, run a quick mental checklist: Total THC, CBD, the ratio between them, the terpenes if they’re listed, and the dates. Those few numbers tell you more about what to expect than the strain name ever will.

And if a label raises a question, ask — the team at Jolly Green reads these every day and is happy to translate. Browse the menu or stop by the shop in Stouffville.