Pack of 15 Moso Flat Bamboo Activated Charcoals Our bamboo charcoal is sourced from responsibly managed bamboo forests. Details: - Size: Approx. 16 cm per stick - Filters between 0.5 and 1 L of water - 6 months of use per stick Charcoal Features: - Removes chemicals and heavy metals - Preserves minerals and trace elements - Improves the taste of water - 100% recyclable and compostable How to use Binchotan charcoal? - HASthe first use, put the charcoal in boiling water for 10 minutes - Let your charcoal dry for a few minutes - Leave the charcoal to 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.