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THE SCIENCE

THE PROCESS

THE PROCESS

The rapid heating and cooling during the carbonisation, or Pyrolysis, process, and the resulting enlargement of the hardwood’s millions of internal pores, is what enables KURO-Bō Activated Charcoal to adsorb (note, adsorb not absorb) toxins:

The rapid heating and cooling during the carbonisation, or Pyrolysis, process, and the resulting enlargement of the hardwood’s millions of internal pores, is what enables KURO-Bō Activated Charcoal to adsorb (note, adsorb not absorb) toxins:



  • At a microscopic level, it attracts the positively-charged toxins and metals (Chlorine, Mercury and Lead, for example) which bind fast to the vast surface area, thereby removing the harmful elements from the water
  • Adsorption is what makes ordinary, municipal-treated tap water taste clean, sweet and 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 after about 3-6 months of daily use, when the pore surface area is effectively covered with impurities and a fresh piece of charcoal is required.