Cassia comes from another kind of cinnamon tree, called Cinnamomum cassia, and it doesn't require as much time or effort to make. Cassia bark is hard and sturdy, so quills are made as one curled ...

which comes from the true cinnamon tree (Cinnamomum verum). It has more flavour and less coumarin than the cheaper cassia cinnamon. Coumarin can be harmful to health in high doses. Ceylon cinnamon ...