Authentic Japanese bamboo charcoal 0 plastic, 0 waste CERTIFIED ORGANIC by the JAS organization - of chlorine, - of pollutants, + of minerals Still produced in an earthenware oven, using ancestral know-how, tiger bamboo wood is burned for 3 days between 800° and 1000°. Very porous in structure, it has the particularity of adsorbing and retaining 3 times more pollutants from air and water than a conventional activated carbon. Its adsorption surface is 3000m2/gram. It is also an excellent absorber of odor and moisture. It is naturally charged with negative ions and naturally attracts toxic particles to it. It remineralizes running water thanks to its silicic acid, calcium and potassium content.