How to buy, store, and use cinnamon (and why the type matters)

September means fall baking starts showing up in your feed. Apple crisp, pumpkin bread, snickerdoodles, morning oatmeal with a heavy hand of cinnamon. But most people grab whatever jar says "cinnamon" at the store without realizing there are two completely different types — and the difference matters more than you'd think.

This is about Ceylon vs Cassia cinnamon. They taste different, they're processed differently, and one contains up to 250 times more coumarin than the other. If you bake regularly or take cinnamon supplements, that number matters. If you just want your apple pie to taste better, the flavor difference matters. Either way, you should know what you're buying.

Ceylon vs Cassia: what's the actual difference?#

Cassia cinnamon (Cinnamomum cassia) is what you'll find in most US supermarkets. It comes from China, Indonesia, or Vietnam. The bark is thicker, darker, and rolls into a single tight curl. The flavor is bold, sweet, and slightly spicy — what most Americans think cinnamon should taste like.

Ceylon cinnamon (Cinnamomum verum) comes from Sri Lanka. It's called "true cinnamon" in spice circles. The bark is thinner, lighter tan, and rolls into multiple fragile layers. The flavor is delicate, floral, and less punchy than Cassia. It's more expensive and harder to find in regular grocery stores.

The big functional difference is coumarin content. Coumarin is a naturally occurring compound in cinnamon that can affect liver function in high doses. Cassia contains around 1,200–6,500 mg of coumarin per kilogram. Ceylon contains less than 40 mg per kilogram — roughly 100 to 250 times less depending on the source.

For context, the European Food Safety Authority sets a tolerable daily intake at 0.1 mg per kilogram of body weight. A single teaspoon of ground Cassia can contain 7–18 mg of coumarin. A teaspoon of Ceylon contains around 0.017 mg. If you're sprinkling cinnamon on oatmeal every morning or taking cinnamon capsules for blood sugar management, that gap matters.

Flavor profiles and when to use each type#

Use Cassia when:

• You want bold, sweet, spicy cinnamon flavor (cinnamon rolls, apple pie, pumpkin spice)
• The recipe calls for a heavy hand (snickerdoodles, churros, cinnamon toast)
• You're baking for people who expect "American cinnamon" flavor
• You're making spice blends where cinnamon needs to stand out (pumpkin pie spice, chai)

Use Ceylon when:

• You want a gentler, more nuanced flavor (delicate cakes, custards, rice pudding)
• The cinnamon is a background note, not the star (vanilla-forward baking, poached fruit)
• You're using cinnamon daily (oatmeal, coffee, smoothies)
• You're making something with fresh fruit where you don't want to overpower it (apple compote, pear tart)

Feature	Cassia	Ceylon
Flavor	Bold, sweet, spicy	Delicate, floral, mild
Coumarin content	High (7–18 mg/tsp)	Very low (~0.017 mg/tsp)
Price	Cheap ($3–5 per jar)	Expensive ($8–15 per jar)
Availability	Every grocery store	Specialty stores, online
Best for	Bold baking, spice blends	Daily use, delicate desserts

One practical note: if you're swapping Ceylon for Cassia in a recipe, you might need to add slightly more Ceylon to get the same intensity. Ceylon is milder, so taste as you go.

How to identify and buy cinnamon#

Most jars at the grocery store don't say "Cassia" or "Ceylon." They just say "cinnamon." Here's how to tell:

Check the label for botanical name:

• Ceylon: Cinnamomum verum or Cinnamomum zeylanicum
• Cassia: Cinnamomum cassia, Cinnamomum aromaticum, or just "cinnamon" (if unlabeled, it's probably Cassia)

Look at the physical form (if buying sticks):

• Cassia sticks: Thick, dark, rolled into one or two tight layers. Hard to break.
• Ceylon sticks: Thin, light tan, rolled into many fragile layers. Crumbles easily.

Check country of origin:

• Sri Lanka: Almost always Ceylon
• China, Indonesia, Vietnam: Almost always Cassia

Buy from reputable spice brands:

• The Spice House, Penzeys, Burlap & Barrel, and Mountain Rose Herbs all clearly label Ceylon vs Cassia
• Generic supermarket brands often don't distinguish

If you want Ceylon and can't find it locally, order online. It's worth it if you use cinnamon regularly. If you're just baking pies twice a year, regular Cassia from the grocery store is fine.

How to store cinnamon (and how long it actually lasts)#

Ground cinnamon doesn't go rancid, but it does lose potency fast. If your jar has been sitting in the cabinet for two years, it's probably delivering more dust than flavor.

Ground cinnamon:

• Shelf life: 2–3 years maximum, but flavor starts fading after 6–12 months
• Storage: Airtight container, cool and dark. Not above the stove, not in direct sunlight.
• Test for freshness: Smell it. If it smells faint or flat, replace it. Fresh cinnamon should be intensely aromatic.

Cinnamon sticks:

• Shelf life: 3–4 years if stored properly
• Storage: Same as ground — airtight, cool, dark
• Use for: Infusing liquids (mulled wine, chai, poached fruit), then discard. Don't try to grind old sticks in a spice grinder unless you want to break the motor.

If you buy in bulk, store excess in the freezer. It won't extend shelf life forever, but it slows the loss of volatile oils that give cinnamon its punch.

Common cinnamon mistakes (and how to fix them)#

Using too much in savory dishes. Cinnamon can quickly turn from warm to cloying. In Moroccan tagines, Greek stews, or Indian curries, start with 1/4 teaspoon and build from there. You can always add more.

Burning it in oil or butter. Ground cinnamon scorches fast when exposed to direct heat. If you're toasting spices for a curry or spice blend, add cinnamon at the very end or bloom it in liquid instead of oil.

Ignoring the difference in recipes. A recipe from a European cookbook might assume you're using Ceylon. A recipe from an American baker probably assumes Cassia. If the flavor seems off, that might be why.

Storing it forever. If your cinnamon jar has a layer of dust on top, it's time to replace it. Old cinnamon won't hurt you, but it won't add much flavor either.

Assuming all "Ceylon" labels are accurate. Some studies have found that up to 70% of products labeled "Ceylon" in the US are actually Cassia. If you're buying Ceylon for health reasons (daily use, supplements), buy from a trusted spice company that provides lab testing or certificates of analysis.

What to cook with cinnamon this month#

September is the perfect time to start working cinnamon into your rotation. Here are a few places to start:

• Apple crisp or crumble — peak apple season, and cinnamon is non-negotiable
• Roasted butternut squash — toss cubes with olive oil, cinnamon, and a pinch of cayenne before roasting
• Oatmeal — add a heavy sprinkle of Ceylon for daily use without coumarin concerns
• Homemade granola — cinnamon, maple syrup, and oats are a classic combo
• Spiced coffee or chai — steep a Ceylon stick in your coffee grounds or simmer it in milk for chai

If you're looking for something more structured, try telling Bowie what you have and asking for a cinnamon-forward dessert. You'll get a recipe in seconds that actually uses what's in your pantry.

Frequently asked questions#