[jhausmann]

I wonder if the type makes a difference.

from Wikipedia: Cinnamon - Wikipedia, the free encyclopedia

The name cinnamon is correctly used to refer to Ceylon Cinnamon, also known as "true cinnamon" (from the botanical name C. zeylanicum). However, the related species Cassia (Cinnamomum aromaticum), Saigon Cinnamon (Cinnamomum loureiroi) and Cinnamomum burmannii are sometimes sold labeled as cinnamon, sometimes distinguished from true cinnamon as "Chinese Cinnamon", "Vietnamese cinnamon" or "Indonesian cinnamon."[citation needed] Ceylon cinnamon, using only the thin inner bark, has a finer, less dense, and more crumbly texture, and is considered to be less strong than cassia. Cassia has a much stronger (somewhat harsher) flavor than Cinnamon and is generally a medium to light reddish brown, is hard and woody in texture, and is thicker (2–3 mm thick), as all of the layers of bark are used. All of the powdered cinnamon sold in supermarkets in the United States is actually Cassia. European health agencies have recently warned against consuming high amounts of cassia, due to a toxic component called coumarin.[1] This is contained in much lower dosages in Cinnamomum burmannii due to its low essential oil content. Coumarin is known to cause liver and kidney damage in high concentrations. True Ceylon cinnamon has negligible amounts of Coumarin.