Ceylon vs Cassia vs Saigon Cinnamon: Which One Do You Have?

Quick answer

Three barks, one word. Ceylon (Cinnamomum verum) is the pale, fragile, many-layered one — delicate, faintly citrusy, and almost free of coumarin. Cassia is the dark red single-tube one that fills most supermarket jars — strong, hot, cheap, and high in coumarin. Saigon is a cassia variety, the boldest and sweetest of the three, beloved by bakers and higher in coumarin still.

For flavour, pick by dish: Ceylon for delicate work, Saigon for bakes that need to shout, cassia for everything in between. For health, there is only one answer, and it is Ceylon — not because it adds anything, but because it leaves something out.

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Cinnamon is the only spice on the shelf where the word on the jar does not tell you what is inside.

That is not a conspiracy. In the United States, cassia is legally cinnamon, and has been for as long as anyone has been buying it. But it does mean that most people who have cooked with cinnamon all their lives have never tasted Cinnamomum verum, and are surprised by it when they do.

The three, side by side

	Ceylon	Cassia	Saigon
Species	C. verum	C. cassia	C. loureiroi
Also called	True cinnamon	Chinese cinnamon	Vietnamese cinnamon
Grown in	Sri Lanka	China, Indonesia	Vietnam
Stick	Many thin layers, cigar-like	One thick hollow tube	Short, thick, rough
Colour	Pale tan	Dark reddish-brown	Deep red-brown
Snaps by hand?	Crumbles easily	No	No
Flavour	Delicate, sweet, citrus notes	Strong, hot, astringent	Boldest and sweetest
Coumarin	Traces	High	High to very high
Price	Highest	Lowest	Middle

The stick test, which takes two seconds

If you own sticks rather than powder, you already have the answer in the cupboard.

Look at the cut end. Ceylon is built like a rolled cigar — many paper-thin layers of soft inner bark wound together. Press it and it crushes. You can crumble a Ceylon quill into your palm.

Cassia and Saigon are one piece. A single thick slab of bark curled into a hollow tube, hard enough that you will not break it with your fingers and will struggle with a knife. It is why cassia sticks survive a long simmer intact and Ceylon sticks fall apart in one.

The shortcut: if you can crumble it, it is Ceylon. If it fights back, it is cassia.

Ground cinnamon gives you nothing to look at. Colour is unreliable — grind is coarser or finer, batches vary — so the label is your only evidence. And the label rule is simple: a producer who paid for Ceylon will tell you. If the jar says only “cinnamon”, it is cassia.

Coumarin, and why anyone brings it up

Coumarin is a naturally occurring compound in cassia bark. In large, sustained amounts it stresses the liver, and European food-safety bodies have set a tolerable daily intake for it.

Two facts sit next to each other here and both are true.

A sprinkle of cassia on toast is not a health problem. Nobody has ever been harmed by cinnamon on a bun. The tolerable intake is a daily-over-a-lifetime figure, not a poisoning threshold.

A daily spoonful is a different question. Cinnamon is unusual among spices in that people take it deliberately, every day, in far larger amounts than cooking calls for, because they have read it helps their blood sugar. That habit — not baking — is where cassia’s coumarin becomes worth thinking about.

Ceylon’s coumarin content is a small fraction of cassia’s. It is the whole practical reason the distinction exists outside a spice merchant’s catalogue.

We do not publish a personal limit for anyone; that belongs to the label on your jar and to a pharmacist who knows what else you take. But the structural answer is easy, and it is not “eat less cinnamon”. It is change which cinnamon.

Which to use for what

Ceylon — delicate work, and daily habits

Rice puddings, custards, poached fruit, light bakes, anything where cinnamon is a perfume rather than a hammer. Sri Lankan curry, where it is a savoury backbone. And every daily-spoonful use, for the reason above.

Ceylon’s fragility is a feature: it grinds beautifully and dissolves into a dish rather than sitting in it.

If you want to run the stick test yourself, 52USA whole Ceylon quills are the pale many-layered kind described above — the cut end is the proof. As an Amazon Associate we may earn from qualifying purchases.

Saigon — bakes that need to be loud

Cinnamon rolls, snickerdoodles, coffee cake, apple pie. Saigon carries the most cinnamaldehyde of the three, which is the compound doing the heavy sweet-hot lifting, so it reads as the most cinnamon-y cinnamon. If you have ever wondered why a bakery’s cinnamon buns taste more intense than yours, this is often why.

Cassia — the default, and a fine one

Everything else. Mulled wine, stewed apple, chai, tagine, garam masala, the pinch in chilli. Cassia’s strength is an advantage in a crowded pot, and its hard sticks hold up through hours of simmering without shredding.

The taste difference is real, and it surprises people

Cooks who switch to Ceylon expecting “cinnamon but better” often find it underwhelming at first. It is quieter. The heat is gone, the astringency is gone, and what is left is floral and slightly citrus.

If you swap Ceylon into a recipe written for cassia, use a little more, and expect a rounder, softer result rather than a sharper one. Going the other way, cut cassia back — a Saigon-for-Ceylon straight swap in a milk pudding will bulldoze it.

What this changes about the health claims

Almost every cinnamon health claim you have read was studied using cassia, because that is what is cheap and available to researchers, and because the trials mostly originate where cassia is the local spice.

That produces an awkward situation nobody advertises: the cinnamon with the best evidence behind its blood-sugar effect is also the one with the coumarin problem, and the cinnamon that is safe to take daily is the one that has been studied least.

It is a genuine gap rather than a scandal, and it is worth knowing before you build a habit on a headline. Our guide to cinnamon’s side effects goes through what is established and what is not.

The bottom line

You almost certainly own cassia. That is fine, and for cooking it is often the better choice.

Buy Ceylon when the dish is delicate enough to notice, or when cinnamon has stopped being a seasoning and become a habit. If you are not sure which you have, go and look at the end of a stick — and if it is powder, go and read the label, where the absence of the word Ceylon is itself the answer.

For grades, forms and what to actually put in the basket, see which cinnamon to buy.