It makes tap water taste great!
It may seem counterintuitive to purify your drinking water with a stick of charcoal, but the Japanese have been doing it for centuries.Binchotan—an active carbon made from tree branches—is renowned for its ability to soften water, add good minerals and absorb unwanted tastes and odors, such as chlorine.
Use and care
Your binchotan charcoal is already washed and ready to use. Please do not wash with detergent or soap. Please do not use with flavoured cordials or juices. Please remove the binchotan from the bottle you are using it with these before washing it. Boiling the binchotan for 10 minutes in water will release the impurities it has been holding.
Occasionally you will notice tiny particles / fragments of the charcoal in the water, but do not be alarmed as it will do you no harm if you swallow them (active charcoal tablets are prescribed to treat diarrhoea, digestion and flatulence)