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The Merchant · A study of identityMonograph 02 / Comparative anatomy
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Two names · distinct species

Ceylon cinnamon
and cassia.

They are commonly placed beneath one familiar name. Their species, structure and culinary character tell a more exact story.

Examine the distinction
A pencil study comparing Ceylon cinnamon and cassia barkCeylon cinnamon is shown as a many-layered quill, while cassia is shown as a single thick curl. The drawing is illustrative and not to scale.A · MANY FINE LAYERSB · ONE THICK CURL
Plate IIllustrative study / not to scale

Identity before preference

“Cinnamon” is a category.
Species makes it particular.

Ceylon cinnamon is Cinnamomum verum. Cassia is a commercial name applied to several related species. Both are legitimate spices; they are not interchangeable in botanical identity, physical form or aromatic expression.

The distinction becomes especially difficult in ground cinnamon. Once bark has been powdered, its layered architecture can no longer be examined by sight. Species naming and documented origin therefore matter.

The comparative ledger

Seven points
of distinction.

Point of study
Ceylon cinnamon
Cassia
01Botanical identity
Cinnamomum verum, also called true cinnamon.
Several other Cinnamomum species are sold collectively as cassia.
02Traditional origin
Closely associated with Sri Lanka; the name “Ceylon Cinnamon” is registered as an EU protected geographical indication.
Common commercial cassia types are associated with China, Indonesia and Vietnam.
03Quill architecture
Many fine pieces of inner bark are layered into a densely packed, papery quill.
A thicker piece of bark commonly dries into a hard, single curl or scroll.
04Colour and texture
Usually pale tan to warm ochre, fine and comparatively fragile.
Usually deeper reddish brown, thicker, harder and more resistant to breaking.
05Aromatic character
Gentle sweetness, lifted citrus and floral notes, with a composed warmth.
A darker, more forceful cinnamon character, often hotter and more woody.
06Culinary behaviour
Builds quietly through custards, fruit, infusions, rice, pâtisserie and savoury cooking.
Delivers a direct cinnamon impact that remains assertive in strongly flavoured dishes.
07Coumarin profile
Generally contains only trace or low levels of naturally occurring coumarin.
Generally contains substantially more coumarin; levels vary by species and product.

An examination by eye

Begin with
the cross-section.

Look at the end of a whole quill. Ceylon cinnamon resembles a tightly packed roll of many fine layers. Cassia more often presents one thick wall curled inward. Colour alone is a weaker guide because harvest, drying and storage alter appearance.

For powder, appearance cannot establish species. Look for the botanical name, a clear country of origin and a record that connects the stated identity to the batch.

Explore Serendib Authenticate

A note on composition

Coumarin,
placed in context.

Coumarin is a naturally occurring aromatic compound. Official health sources distinguish low-coumarin Ceylon cinnamon from cassia types, which generally contain more. The amount in cassia varies, and ordinary culinary use should not be confused with concentrated supplement use.

The Merchant presents this distinction as a matter of species and composition. Cinnamon is a food, not a medical treatment, and the comparison does not replace individual medical advice.

Examine composition and health evidence

Primary references

For further examination.

01National Center for Complementary and Integrative HealthCinnamon: usefulness and safety ↗02German Federal Institute for Risk AssessmentCoumarin in cinnamon and other foods ↗03Official Journal of the European UnionCeylon Cinnamon protected geographical indication ↗

Continue the study

One species.
Two House Selections.

Examine Alba and C5 as distinct expressions of Ceylon cinnamon, each defined by its grade, construction and character.

Explore AlbaExplore C5