The short answer
Ceylon cinnamon (Cinnamomum verum) comes from Sri Lanka and is made of many thin, brittle layers of bark with a mild, sweet flavour. Cassia (mainly Cinnamomum cassia, C. burmannii and C. loureiroi) comes largely from China, Indonesia and Vietnam; it is a single thick, hard layer of bark with a stronger, spicier flavour and typically much more coumarin.
Ceylon and cassia side by side
The differences below are physical and botanical — things you can see, smell and check for yourself.
| Attribute | Ceylon cinnamon | Cassia |
|---|---|---|
| Botanical species | Cinnamomum verum (syn. C. zeylanicum) | Mainly C. cassia, C. burmannii and C. loureiroi |
| Main origin | Sri Lanka | China, Indonesia and Vietnam |
| Quill structure | Many thin layers rolled inside one another | One thick layer curled into a hollow tube |
| Colour | Light tan to golden brown | Dark reddish brown |
| Texture | Brittle; crumbles by hand and grinds easily | Hard and woody; difficult to break or grind at home |
| Flavour & aroma | Mild, sweet and delicate, with citrus and floral notes | Strong, hot and pungent |
| Coumarin | Generally very low | Typically much higher |
| Typical use | Desserts, tea, delicate sauces, and Sri Lankan and Mexican cooking | Everyday supermarket ground cinnamon, bold baking and long braises |
Telling whole quills apart
With whole cinnamon, you rarely need a lab. Pick up a stick and check:
- Look at the end: Ceylon shows a spiral of thin layers, like a cigar; cassia shows one thick curl, often rolled in from both sides.
- Try to snap it: Ceylon crumbles easily in your fingers; cassia is hard and woody.
- Check the colour: Ceylon is light tan to golden; cassia is darker and more reddish.
- Smell it: Ceylon is sweet and gentle; cassia is sharper and more intense.
What about ground cinnamon?
Once ground, the two are much harder to tell apart by eye. Ceylon powder is usually lighter in colour and milder in aroma, but the reliable guide is the label: look for Cinnamomum verum or a stated Sri Lankan origin, and ask your supplier if it is not there. Much of the ground cinnamon sold in supermarkets, particularly in North America, is cassia.
A note on coumarin
Coumarin is a naturally occurring aromatic compound. Cassia typically contains considerably more of it than Ceylon cinnamon, which is why food-safety authorities such as Germany's Federal Institute for Risk Assessment (BfR) have paid particular attention to cassia.
We sell cinnamon as a food ingredient and make no health claims for it. If you have a medical question about cinnamon or coumarin, please ask a qualified professional.
Which should you choose?
Neither is simply better — they are different spices. Choose Ceylon cinnamon when you want a gentler, more layered flavour, or when origin matters to you or your customers. If you are buying Ceylon, the next question is the grade.