Clean and dry glass cylinder with screw-top lid or mason jar with an airtight lid
Instructions
Put ground cinnamon in a jar or other container that won't let air in.
Close it up tight. Store the spice somewhere where it won't be affected by light, heat, or moisture (these things can cause flavor or scent to dissipate faster, grow mold, and/or attract bugs) .
Use the spice for up to two years.
Notes
Don’t keep spices close to the stovetop or oven because the heat affects the shelf life.