1 - one ounce bag of japanese white ash/censer filler.
Place a generous mound of ash on or in your incense burner to ensure that incense cones burn down all the way. Japanese white ash is also great for leveling out wobbly cones and/or uneven incense burner surfaces (due to resin buildup over time!).
I recommend changing the ash out every 2-3 cones. Enough for roughly 1-2 packs of our incense cones, depending on your size of vessel.
Do not ingest. For incense burning purposes only.