Set of 5 round Moso bamboo activated charcoals Our bamboo charcoal comes from responsibly managed bamboo forests. Details: Size: Approx. 14cm per stick Diameter +/- 2.5cm Filters between 0.5 and 1L of water 6 months of use per stick Charcoal characteristics: Eliminates chemicals and heavy metals Preserves minerals and trace elements Improves the taste of water 100% recyclable and compostable How to use Binchotan charcoal? For the first use, put the charcoal in boiling water for 10 minutes Let your charcoal dry for a few minutes Let the charcoal work for 4 to 8 hours Your water is purified. 1% of Binchotan sales are donated to our partner NGO working for reforestation in the Amazon.