Ceylon Cinnamon Alba Grade: Coumarin, Cinnamaldehyde & What the Grade Really Tells You
Most people buying cinnamon for health reasons have heard that Ceylon cinnamon is safer than cassia. Many Ceylon sellers then take it a step further and tell you the grade — Alba, C5, C4 — sets the coumarin level, and that Alba is the "lowest-coumarin" cinnamon you can buy. It's a tidy story. It's also not what the evidence shows, and we'd rather give you the accurate version — even though we sell Alba.
Here's what the grade actually tells you, what it doesn't, and where the real Alba distinction lies.
The short version
- True Ceylon cinnamon (Cinnamomum verum) is low in coumarin because of the species — not because of the grade. All grades of real Ceylon share that low-coumarin profile.
- Grade (Alba, C5, C4, M, H) describes the quill — its diameter, colour, and how finely it's rolled. It's a measure of appearance and craftsmanship, which is why Alba costs more.
- Coumarin within Ceylon varies by tree and harvest, batch to batch — not reliably by grade. The only way to know a specific batch's number is a lab test of that batch.
- Alba's genuine appeal is the fine inner bark: pale, delicate, aromatic, and beautiful — not a safety upgrade over C5.
Coumarin: the real difference is Ceylon vs cassia, not grade vs grade
Coumarin is a naturally occurring compound found in many plants, including cinnamon bark. At high, sustained doses it can stress the liver, which is why the European Food Safety Authority (EFSA) set a tolerable daily intake (TDI) of 0.1 mg of coumarin per kg of body weight — about 7 mg per day for a 70 kg adult.
The coumarin problem is a cassia problem. Cassia cinnamon (the type sold as most supermarket "cinnamon") carries enough coumarin that daily use — a teaspoon in oatmeal, a sprinkle on coffee — can approach or exceed that limit, especially for children. True Ceylon cinnamon carries only trace coumarin, so at any realistic culinary amount you stay far under the limit.
Published food-safety surveys put the ranges like this:
| Cinnamon | Coumarin (mg per gram) | Daily use, 1–2 tsp |
|---|---|---|
| True Ceylon (Cinnamomum verum) | below detection – ~0.3 | Far below the EFSA limit |
| Cassia | ~0.7 – 12 | Can approach or exceed the limit |
Ranges from the German Federal Institute for Risk Assessment (BfR) and a Czech retail-market survey. Values vary widely batch to batch — which is exactly why an average can't tell you what's in your bag.
Notice what that table does not have: a row for each Ceylon grade. That's deliberate. We used to publish a precise coumarin figure for Alba, C5, C4, and so on — and after reviewing the sources, we took it down, because the science doesn't support it.
Does the grade set the coumarin level? No — and here's the honest reason
Grade is assigned by the Sri Lanka Standards Institution mainly on quill diameter — Alba is the thinnest (under 6 mm), then C5 Special, C5, C4, the M grades, and the H grades, getting progressively thicker. It's a physical, visual classification that determines price and presentation.
Coumarin, on the other hand, tracks with the individual tree's genetics and the harvest conditions, and varies from batch to batch within any grade. A specific Alba lot and a specific C5 lot can land either way. The reason all of them are low is the same reason: they're all Cinnamomum verum. That's the species talking, not the grade.
We go through the evidence for this in full — including how to check any seller's coumarin claim — in Coumarin in Ceylon Cinnamon: what grade tells you, and what only a lab can.
Why we're correcting our own post: the thing that actually separates a trustworthy cinnamon brand from a marketing one is whether it tells you the truth and shows you the test. "Alba = lowest coumarin" sounds good and doesn't hold up. "This batch was tested, here's the number" does. We'd rather earn your trust with the second one — so we fixed the page.
Cinnamaldehyde and flavour: where Alba genuinely stands out
Cinnamaldehyde is the compound behind cinnamon's warm flavour and aroma, and the one most studied for its biological activity. It's carried in the bark's essential oil. Alba is made from the finest, innermost bark layers, hand-rolled into pencil-thin quills — the part of the bark prized for a delicate, sweet, complex aroma.
Is that a measurable, guaranteed cinnamaldehyde number you can read off the grade? No — like coumarin, the actual essential-oil and cinnamaldehyde content of any batch depends on the material and is confirmed by testing the oil, not by the grade stamp. What's fair to say is that Alba's fine inner bark is the most sought-after material for flavour and fragrance, which — alongside the labour of producing it — is what you're paying the premium for. Choose Alba for its delicacy, appearance, and aroma; choose C5 when you want nearly all of that character at a fraction of the price for everyday use.
New to the grading system? See our full breakdown: Ceylon Cinnamon Grades Explained.
What this means if you use cinnamon daily
- For coumarin safety, the choice that matters is Ceylon over cassia — not Alba over C5. Any genuine Ceylon grade keeps you far under the daily limit at normal use.
- For flavour and fineness, Alba is the top of the range — worth it for tea, gifting, and grinding fresh; C5 is the everyday value pick.
- For certainty about a specific bag, ask for the batch's certificate of analysis — species ID, heavy metals, and coumarin. Grade, brand, and origin are not substitutes for a measured number.
Want your personal numbers? Our Safe Cinnamon Calculator works out your coumarin limit and lead exposure by body weight, and our per-batch lab results show the actual figures for the cinnamon we ship.
Frequently asked questions
Does Alba grade Ceylon cinnamon have less coumarin than C5 or C4?
Not reliably. Grade describes the quill's thickness and appearance, not its coumarin content. All true Ceylon cinnamon is low in coumarin because of the species; within Ceylon, coumarin varies by tree and harvest from batch to batch rather than by grade. Only a per-batch lab test gives a real number.
Is Alba the healthiest cinnamon?
Alba is the finest and most delicate grade, but "healthiest" isn't set by grade. For coumarin safety, any true Ceylon cinnamon is a good choice over cassia. For assurance about contaminants, what matters is whether the batch is lab-tested — not whether it's Alba or C5.
Why does cassia have so much more coumarin than Ceylon?
It's a difference between species. Cassia cinnamon (Cinnamomum cassia and C. burmannii) naturally contains high coumarin, while true Ceylon cinnamon (Cinnamomum verum) contains only traces. Most cinnamon sold cheaply as "cinnamon" is cassia.
Then why buy Alba at all?
For its fine inner-bark character — the pale colour, paper-thin quills, and delicate aroma — and for gifting or grinding fresh at home. It's the premium of the range for flavour and presentation, not a safety upgrade over other genuine Ceylon grades.
How do I know the coumarin level of a specific cinnamon?
Ask the seller for the certificate of analysis for that batch. Coumarin is a standard test alongside heavy metals. If a seller quotes only a grade or a brand-wide average, they're not telling you what's in your bag.
This article is for general education and is not medical advice. If you are pregnant, take medication, or have a liver condition, talk to your doctor before using cinnamon supplements.
