Walk down any supermarket spice aisle in the United States and pick up a jar labeled “cinnamon.” You probably aren’t holding cinnamon. You’re holding cassia — a related bark from a different tree species, mostly grown in southern China, Vietnam, and Indonesia. It’s cheaper, more pungent, and has been mislabeled “cinnamon” in the US market for so long that most people don’t know the difference exists.

The real thing — true cinnamon, scientific name Cinnamomum verum (sometimes called Cinnamomum zeylanicum) — is grown almost exclusively in Sri Lanka. It’s lighter in colour, sweeter, more delicate in flavour, and crumbles easily between your fingers. It also contains 250 times less coumarin than cassia, which is the part of the conversation most people skip past but probably shouldn’t.

This guide will give you the practical tools to tell them apart — visually, by feel, by taste, and by reading the label. We’ll also cover why cassia became “cinnamon” in the first place, when each one is the right choice, and how to actually buy the real thing without getting fooled by clever marketing.

The two-second test

If you have two sticks of “cinnamon” in front of you and want to know which is which, here’s the fastest visual test:

Ceylon cinnamon sticks

• Look like tightly rolled cigar tubes made of many thin layers of bark — like a cinnamon scroll cross-section.
• Light tan to medium brown colour, sometimes with a slight pinkish tint.
• Thin walls (1–2 mm). The stick feels almost papery.
• Crumbles easily when you press with a fingernail. Often arrives partly broken in the bag.
• Smells sweet and floral. Subtle.

Cassia sticks

• Look like a single thick scroll of dark bark with hollow interior — one big curl rather than many fine layers.
• Dark reddish-brown.
• Thick walls (3–5 mm). Hard, woody, dense.
• Resists breaking. You usually need a pestle, mortar, or coffee grinder to break it.
• Smells strong, hot, almost spicy-medicinal.

If you only ever buy ground cinnamon you probably can’t tell from the powder alone — but you can read the label, and we’ll cover that in a moment.

Why the distinction matters: the coumarin question

This is the part most American “cinnamon” buyers don’t realise until they go looking.

Coumarin is a naturally occurring compound found in cassia. In high doses it’s hepatotoxic — meaning it can damage the liver. The European Food Safety Authority (EFSA) has set a tolerable daily intake of 0.1 mg per kg of body weight per day. For a 70 kg adult, that’s about 7 mg of coumarin per day.

A single teaspoon of cassia cinnamon (about 2.5 g) can contain 5 to 30 mg of coumarin, depending on the variety. A teaspoon of Ceylon cinnamon contains roughly 0.05 mg. Same teaspoon. 100 to 600× the coumarin in the cassia version.

This is the single most important reason to know which one you’re buying. Not because cassia is “bad” — it’s a perfectly fine baking spice in moderation. But because the choice should be informed.

How cassia became “cinnamon” in the US grocery aisle

If true cinnamon comes from Sri Lanka and cassia comes from China, how did cassia end up as the default in American supermarkets?

The short answer: price. Cassia grows faster, the trees are easier to cultivate at scale, the bark is thicker (more product per harvest), and the supply chain runs through bigger ports with established trade lanes. A pound of cassia at wholesale costs a fraction of what Ceylon cinnamon costs to produce. When you’re competing on the shelf at a 99-cent spice rack, that matters.

The longer answer involves a quirk of US food labelling. The FDA does not require a spice labelled “cinnamon” to specify the species. Cinnamon, in US regulatory terms, includes both Cinnamomum verum and the cassia varieties. So as long as a producer is selling bark from any Cinnamomum tree, they can call it “cinnamon” on the label and not technically be lying.

In most of Europe, the distinction is clearer. German, French, and Scandinavian labels often specify “Ceylon-Zimt” (Ceylon cinnamon) or “Cassia-Zimt” so a buyer knows what they’re getting. In Sri Lanka, where we grow it, no one would dream of calling cassia “cinnamon” — they’re obviously different plants. The conflation is essentially an American grocery-aisle phenomenon.

How to read a label and not get fooled

If you want to make sure you’re buying true cinnamon, look for any of these signals on the package:

1. The Latin name Cinnamomum verum or Cinnamomum zeylanicum. If the package names a species at all, this is the giveaway. Reputable Ceylon sellers print it prominently.
2. Country of origin: Sri Lanka (sometimes listed as “Ceylon” — the colonial-era name). If the origin is China, Vietnam, or Indonesia, it’s cassia. If origin is unlisted, assume cassia.
3. The word “Ceylon” in the product name. “Ceylon cinnamon” is the standard market shorthand for true cinnamon. Plain “cinnamon” without that word is almost always cassia.
4. Stick form, if visible — use the two-second test above. Many thin layers, not one thick scroll.
5. Price. Real Ceylon cinnamon retails between $15 and $30 per pound depending on grade and packaging. If you’re paying $3 for “cinnamon sticks,” it’s cassia.

Some labels say “true cinnamon” without naming the species — that’s a strong but not definitive signal. The Latin name + Sri Lankan origin is the gold standard.

When is Ceylon the right cinnamon, and when does cassia work better?

This isn’t a “Ceylon is always better” article. The two have genuinely different culinary roles:

Use Ceylon cinnamon for

• Daily wellness use — anyone using cinnamon for blood-sugar support, immune support, in golden milk or daily tea: you want the low-coumarin version.
• Delicate baked goods — Scandinavian sticky buns (where Ceylon is traditional), apple compotes, custards, panna cotta, rice puddings. Ceylon’s sweetness shines without overpowering.
• Tea and coffee — a Ceylon cinnamon stick in your French press or chai delivers warmth without harsh notes.
• Cinnamon for children — if a kid eats cinnamon sprinkled on oatmeal every morning, Ceylon is the safer choice over time.
• Anywhere the cinnamon is the star — cinnamon ice cream, cinnamon syrup, cinnamon-infused honey.

Use cassia for

• Big bold-flavour dishes — Mexican mole, Indian biryani, Vietnamese pho broth, Sichuan red-cooked pork. Cassia’s heat carries through.
• American baking classics — pumpkin pie, snickerdoodles, cinnamon rolls. These recipes were developed with cassia in mind, and cassia’s punch is part of the flavour profile.
• When you want a strong cinnamon-scented kitchen — cassia is more aromatic in the air.

For most home cooks, the right answer is to keep both. Ceylon for daily use, smaller jar; cassia for the occasional heavy-flavour recipe.

Recipes where Ceylon cinnamon shines

If you’ve never cooked with true cinnamon, here are three places to start:

Ceylon cinnamon tea

Steep one 5-cm Ceylon cinnamon stick in 250 ml just-off-boiling water for 8 minutes. Add a thin slice of fresh ginger and a teaspoon of honey. This is how cinnamon is most commonly consumed in Sri Lankan households — sweet, warm, slightly floral.

Ceylon-infused cold-brew coffee

Crush a Ceylon cinnamon stick and add to your cold-brew coffee grounds before steeping. The Ceylon’s delicate sweetness pairs with coffee’s bitterness in a way cassia would overpower.

Apple-cinnamon compote

Cook 3 sliced apples with 2 tablespoons of butter, 1 tablespoon of brown sugar, and 1/2 teaspoon of ground Ceylon cinnamon for 8 minutes. The Ceylon lets the apple flavour come through; cassia would dominate it.

Where to buy real Ceylon cinnamon

If you’ve got this far, you probably want to actually try it. A few buying notes:

• Look for direct-from-Sri-Lanka sellers when possible. Shorter supply chain = fresher product, fewer middlemen, more accurate labelling. We’re one of them.
• Check the harvest year on the label. Cinnamon is shelf-stable for 2–3 years, but flavour peaks in the first 6–12 months. If the harvest year isn’t listed, ask the seller.
• Sticks vs powder: sticks keep flavour longer (the oils don’t oxidise as quickly). If you’re using cinnamon weekly, sticks + a small grinder is the freshest option. Powder is more convenient.
• Grade matters slightly. Ceylon cinnamon is sold in grades from “Alba” (highest, most expensive, thinnest sticks) down to “M5 Special.” For everyday home use, any grade is excellent — grades mainly affect appearance and uniformity, not flavour at this level.

We sell Ceylon cinnamon in three forms:

• Ceylon cinnamon sticks — whole quills, ideal for tea and slow-cooked dishes
• Ceylon cinnamon powder — fresh-ground, for baking and daily sprinkling
• Ceylon cinnamon chips — broken bark pieces, good for cold-brew infusions and homemade extracts

All from Cinnamomum verum, all grown in Sri Lanka, with harvest year on the label.

The simplest way to try all three is the Ceylon Spice Discovery Box: 2 oz of each, plus cardamom, cloves and black peppercorns, packed in Kandy and shipped worldwide with shipping included. Individual jars and bulk quantities are sourced to order.

Ceylon cinnamon vs cassia: quick answers

What is the difference between Cinnamomum verum and cassia?

Cinnamomum verum is true cinnamon, also sold as Ceylon cinnamon, and it grows in Sri Lanka. Cassia is bark from related Cinnamomum species grown mainly in China, Vietnam and Indonesia. They are different trees, not different grades of the same one.

How can I tell true cinnamon from cassia at home?

Look at the stick end on. Ceylon cinnamon is made of many thin, papery layers rolled together like a cigar, and it crumbles easily. Cassia is one thick, hard layer curled into a single hollow scroll. In powder form, check the label for the species name and for Sri Lankan origin.

Is cassia cinnamon bad for you?

Cassia is fine as an occasional baking spice. The concern is coumarin, which is hepatotoxic in high doses. A teaspoon of cassia can contain 5 to 30 mg of coumarin against roughly 0.05 mg in Ceylon cinnamon, and the EFSA tolerable daily intake is about 7 mg for a 70 kg adult. If you take cinnamon daily, or give it to children regularly, the exposure adds up.

Is Ceylon cinnamon better than cassia?

Not for every use. Ceylon is the better choice for daily use, delicate baking, tea and coffee, and anywhere cinnamon is the star flavour. Cassia carries better in bold dishes such as mole, biryani and pho, and in American baking classics that were developed around its stronger profile.

Why is most supermarket cinnamon actually cassia?

Price, and US labelling rules. Cassia grows faster and has thicker bark, so it costs far less to produce. The FDA does not require a spice labelled as cinnamon to name its species, so bark from any Cinnamomum tree can legally be sold under that name.