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Questions answers 

How many liters filters 1 stick?

1 stick is provided to filter 1 liter of running water. However, the water quality is not equal every  common. We advise you to check the water quality of your city, village via this link .

If the water is of poor quality, prefer 2 sticks / L of water.

My charcoal has broken, particles are floating, can I use it?

The coal  vegetal  due to its high porosity is weakened and can break by releasing a few particles. This phenomenon is quite normal for a natural product. Although broken, it will be all the more effective because its contact surface with water will become more extensive. The charcoal particles will help digestion (just like powdered activated charcoal)!

How long can I leave the charcoal in the water?

You can completely leave it immersed in your container for 1 month and add water as needed (remember to leave the stick to act between 4h and 8h each time you fill with water). After 1 month of continuous use, boil again for 10 min. then dry before placing it back in your carafe.

My coal floats!

Vegetable charcoal is extremely porous because it is emptied of any substance accumulated during its wood life. The activation phase thus makes it very light and it floats the first days of use to finally fall to the bottom of the container when its pores are saturated with water.

What are the toxic substances adsorbed by charcoal? Studies ?

We had the toxic adsorption capacities of French activated carbon evaluated by an independent laboratory.
Water analysis before

Water analysis after

Why boil charcoal?

Vegetable charcoal has the greatest adsorption capacity of all known natural or synthetic materials. It has the power to attract and retain toxic particles present in the air and in the water. It is therefore important (before use and every 1-2 months) to sterilize it by boiling it in order to free its pores from toxic substances.

Can my coal be  radioactive?

Quelles différences entre Binchotan et Takesumi ? 

The Takesumi we import is non-radioactive. We perform Geiger counter testing every time we receive goods from Japan. (available on demand)

Results  of the test in the air

Result test in a coal cardboard Takesumi  Japanese BIO

Result Test in a cardboard Binchotan Kishu

Le Takesumi que nous importons est non radioactif. Nous effectuons des tests au compteur Geiger à chaque réception de marchandises en provenance du Japon. (disponibles sur demande)

Résultat du test dans l'air

Résultat du test dans un carton de charbon Takesumi japonais BIO

Résultat du test dans un carton de Binchotan Kishu

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