How to Reuse Cinnamon Sticks
- 1). Break off the portion of the cinnamon stick you plan to use for the individual recipe with a pair of clean pliers or basic hinged nutcracker. Grind the broken-off portion of the stick so it can be measured for future recipes. Break and grind more as needed.
- 2). Place the finished sticks in a small, airtight container and seal it securely. Use masking tape and a permanent marker to label the container with an expiration date (exactly one year from the storing date) and the words "cinnamon sticks."
- 3). Place the sealed container in the refrigerator so the label is visible. Reuse and restore the sticks as necessary until the expiration date is reached.
Source...