Pack of 3 Moso Round Activated Bamboo Charcoal 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 Features: Removes chemicals and heavy metals Preserves minerals and trace elements Improves water taste 100% recyclable and compostable How to use Binchotan charcoal? HAS the first use, put the charcoal in boiling water for 10 minutes Let your charcoal dry for a few minutes Let the charcoal act for between 4 and 8 hours Your water is purified. 1% of Binchotan sales are donated to our partner NGO working for reforestation in the Amazon.