Each Azenta® incense burner is made of cast stone and is totally fireproof. Simply sprinkle Azenta incense powder into the "track grooves" of the burner, and using the tamp provided with your Azenta stone burner firmly pat down the powder into the track. Light one end of the powder track, sit back and enjoy the fragrance! After burning is completed and you are sure the ash is completely cool, use the provided brush to clean your burner. It's now ready for another burning session. Azenta burners are designed for years of use and enjoyment. Page 1 of 2.