Description:
Hold the corner of one coal over a candle flame until it starts sparkling and going orange with heat. Place the lit disc on your censer, being careful not to touch any hot part. When the whole coal has gone white, add a small amount of your incense. As it stops producing smoke, add more if needed, use until the whole coal is ash.

Safety:
A lit coal is extremely hot and will severely burn. Place the censer in a safe place, away from the edges, so as not to let it fall and cause a fire.