Saigon cinnamon is a cassia variety, not Ceylon. It comes from the tree Cinnamomum loureiroi, native to Vietnam, and is sometimes called Vietnamese cinnamon or Vietnamese cassia. Of the four major cinnamon species sold commercially, only one is true Ceylon. The other three, including Saigon, fall under the cassia umbrella.
The Two Classes of Cinnamon
All cinnamon sold worldwide belongs to one of two broad categories: Ceylon or cassia. Ceylon cinnamon comes from Cinnamomum verum, grown primarily in Sri Lanka. It has a mild, delicate flavor and very low levels of coumarin, a naturally occurring compound that can stress the liver in large amounts.
Cassia cinnamon includes several species. The most common are Chinese cassia (Cinnamomum cassia), Indonesian Korintje, and Saigon cinnamon. Of these, Saigon cinnamon is the most potent. It has higher essential oil content and a stronger, sweeter-spicy flavor than any other variety, which is why some specialty retailers call it the “champagne of cinnamon.” It’s cultivated mainly in the upland hills of northern Vietnam, where ethnic minority farmers harvest the bark for export.
How to Tell Them Apart
The easiest way to distinguish Ceylon from any cassia variety, Saigon included, is to look at a cinnamon stick. Ceylon quills are made of many paper-thin layers of bark rolled into a tight scroll, with a warm golden-tan color. The layers are delicate enough that you can crumble them between your fingers. A Saigon or other cassia stick looks like a single thick tube of bark, darker in color and much harder to break.
Ground cinnamon is trickier. Saigon cinnamon powder tends to be a deeper reddish-brown than Ceylon, and the aroma is noticeably stronger. If a pinch of ground cinnamon hits you with an intense, almost spicy warmth, it’s likely cassia. Ceylon smells softer and more floral.
Flavor and Cooking Differences
Saigon cinnamon’s high oil content makes it the boldest cinnamon you can buy. Cinnamaldehyde, the compound responsible for cinnamon’s characteristic bite, is present in especially high concentrations in Saigon bark. That intensity is why bakers reach for it when cinnamon needs to be the dominant flavor: cinnamon rolls, snickerdoodles, apple pie, French toast. It punches through butter, sugar, and dough without fading.
Ceylon cinnamon works better in dishes where you want a subtle warmth rather than a cinnamon blast. It’s popular in curries, rice dishes, poached fruit, and lighter baked goods. Because it’s milder, you often need more of it to achieve the same level of flavor, which can matter for recipe scaling.
The Coumarin Question
The main health distinction between cassia and Ceylon cinnamon is coumarin content. Coumarin occurs naturally in cinnamon bark, and cassia varieties contain far more of it than Ceylon. Studies analyzing cassia cinnamon products have found coumarin levels between 2,650 and 7,017 mg per kilogram. Ceylon cinnamon contains only negligible amounts. Saigon cinnamon, as a cassia type, falls on the higher end of the coumarin spectrum.
The European Food Safety Authority sets a tolerable daily intake for coumarin at 0.1 mg per kilogram of body weight. For a 150-pound person, that works out to roughly 6.8 mg per day. A teaspoon of cassia cinnamon powder (about 2.5 grams) could contain anywhere from 6.6 to 17.5 mg of coumarin based on the ranges found in testing, meaning even a single teaspoon could exceed the daily limit.
That said, the practical risk for most people appears to be modest. A Japanese clinical study followed 129 patients taking cinnamon-containing traditional medicines daily, with 76% of them exceeding the tolerable daily intake. Researchers found no cases of liver damage attributable to cinnamon bark, and there was no significant difference in liver function between those who stayed under the limit and those who exceeded it. Still, if you use cinnamon heavily every day, particularly in supplement form, switching to Ceylon is a straightforward way to reduce your coumarin exposure.
Which Type Is on Your Shelf
Most cinnamon sold in American grocery stores is cassia, though the label rarely specifies which type. If the jar just says “cinnamon” without any qualifier, it’s almost certainly Chinese cassia or Korintje. Saigon cinnamon is typically labeled as such, since its stronger flavor is a selling point. You’ll find it at spice shops and some larger grocery chains, often at a slightly higher price.
Ceylon cinnamon is less common in mainstream stores but widely available online and at specialty retailers. It’s sometimes labeled “true cinnamon.” If coumarin is a concern for you, or if you prefer a gentler flavor, look for that specific label. For baking where you want a bold cinnamon presence, Saigon cassia is hard to beat.