Something I am commonly asked is ‘does incense expire’?
The truth is that incense does not soil or become rancid. It does not expire in the same way, say a piece of fresh fruit would. However, heavily oil-laden incense sticks may dry out a bit and become a little less fragrant.
If you store your incense correctly, then your incense should quite a while. Cheap incense may become noticeably weaker after a couple years or so, but higher quality incense may last a while longer.
Some resin heavy incense such as agarwood incense may even improve a bit as they age. This is because sometimes these woods smell a bit acrid when they are first harvested. Allowing acrid smelling agarwood to age a little bit helps to mellow the scent out.
I hope you found this information beneficial.
Main photo by Herry Sutanto on Unsplash.