I use some menthol crystals left over from my beekeeping days.
Bulk Mite-A-Thol® is a free flow pelletized 99% pure menthol. One pound is less than $20.00 at
http://www.mannlakeltd.com/
I put a couple crystals in my weekly stuffed sticks, if they need a bit.
I mentolate bulk stock by putting a crystal in the bag and nuking it for 30 seconds.
I keep my menthol tubes flavored by throwing a few crystals in the bottom of the storage container.
A little goes a long, long way.
