This charcoal is most useful when burning natural incenses frankincense tears, lumps of myrrh or other resins. Directions: Place the charcoal in a burner or non-flammable dish. Do not hold it in your hands as it ignites very quickly. Touch the outer edge of the charcoal with a lighted match or taper and add your incense cones, powder or resins in the center of the charcoal. Each piece will stay lit for approximately 30-50 minutes.