The Science behind Binchotan

KuroBo Products


KURO-Bō Activated Charcoal  (Binchotan) has undergone rigorous scientific testing*, affirming its successful capacity for:

  • toxin, chemical and bacterial adsorption and removal from contaminated water
  • balancing an acidic pH of spiked water
  • enriching tap water with beneficial essential minerals

*Performed by A.L. Abbot & Associates, SANAS-accredited specialists in Water Treatment – Reg. No. 82/04379/07 - The report can be viewed here.


The rapid heating and cooling of the carbonisation process, and the resulting enlargement of the hardwood’s million’s internal pores, is what enables the KURO-Bō Activated Charcoal to adsorb toxins:
  • At a microscopic level, it attracts the positively-charged toxins and metals (chlorine, mercury and lead) and then attaches those toxins onto itself, thereby removing the harmful elements from the water
  • Adsorption is what makes ordinary, municipal-treated tap water taste so much cleaner and more delicious
  • A single gram of activated charcoal can have a surface area of up to 1500m2 – essentially 6 times the surface area of a tennis court – which is why it can so efficiently adsorb as many toxins as it does!
  • Each KURO-Bō Stick or pack of Kōins reaches a saturation point at about 3-6 months of daily use.


  • Keep the pores open and surface area maximised for optimal toxin adsorption maximised

  • Do not allow adsorbed toxins and impurities back into the water, nor when it is recycled as a biochar