We read the product pages and brand FAQs for 10 popular US cinnamon brands to see which species each one says it sells, and how to read the words on a jar.

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Sticks for infusing, ground for baking and blending: how to choose between cinnamon quills and powder, how to spot real Ceylon quills, and an honest note that we sell powder only.

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True cinnamon is Ceylon cinnamon, Cinnamomum verum. Here is how it differs from Cassia, what a US label does and does not tell you, and how to check at home.

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Three real ways to check if your cinnamon is Ceylon or Cassia, plus why the popular iodine test doesn't hold up as well as blogs claim.
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US federal law doesn't require a cinnamon label to say whether it's true Ceylon cinnamon or cassia — legally, "cinnamon" covers both. Here's the actual regulation, what a 2024 industry investigation found, and how to check what's really in your jar.

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The September 2026 Lior ground cinnamon recall, verified on FDA's site, plus what Consumer Reports found in 36 cinnamon products and why lead is a separate question from Ceylon vs Cassia.

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