Recently our sales of white ash have been sky-rocketing and so I would like to take a moment for a few words on the subject.
Our white ash is made from pure bamboo and contains no additives, silicone, or fibers. This is important for kodo presentations and incense games because the ash and charcoal must be pure and non odiferous.
In addition to the incense ceremony there are many other uses for this ash. It can be used in a cup to hold incense sticks (senko) upright. This is the method used by most Zendo's as with this method you don't have to empty out the stick ashes and remainder of the incense stick each time you burn a stick of incense.
Another use is in incense burners (koro's) covered or uncovered where you bury a piece of charcoal and burn incense materials on top of the ash.
Ash is re-usable!
When your cup or koro begins to clutter with un-burned ends or pieces of material or charcoal it can be completely restored by 1. Sifting out the debris, and 2. Placing ash in an oven-safe container and baking in the oven at 400 degrees for about 30 minutes. This will remove any residual aromas and your ash will be as good as new.