Using only the highest-grade Binchotan charcoal, Essence of Life's water filters provide an ecological and effective way to remove impurities from tap water. Binchotan charcoal, with its high mineral content and water-softening properties, can improve the taste of tap water. Binchotan charcoal sticks naturally absorb toxins such as chlorine, lead, mercury, cadmium, and copper from tap water and impart good minerals such as calcium, potassium, magnesium, and phosphates to water.