Cinnamon sticks are tree bark from tropical sri lankan trees which belong to the Cinnamomum family.
When they are harvested, the inner bark of the tree is removed in strips.
When the bark dried it shrinks and curls into the form of sticks.
Ceylon cinnamon sticks (quills) have many thin layers and can easily be made into powder using a coffee or spice grinder, whereas cassia sticks are much harder.
Indonesian cinnamon is often sold in neat quills made up of one thick layer, capable of damaging a spice or coffee grinder. (source)
So can chinchillas eat cinnamon sticks?
Unfortunately they can’t.
They are considered toxic foods for chinchillas.
Even humans can’t have too much of them as they are so strong in flavor.
For more foods that chinchillas can and can’t eat, check out our chinchilla food list