Instructions: Grind charcoal and mix well with tragacanth and sandalwood powder.

In a separate container, combine water and potassium nitrate and mix thoroughly with dry ingredients. Pat into mini-muffin molds or candy molds, or place in a rectangular pan and score into bricks. Leave in a dry, airy place for two days.

To use, place a briquette in a fireproof bowl or burner, light one corner, and sprinkle loose incense over the slow-burning coal.

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