Use Binchotan active charcoal to filter your tap water, improving both taste and health! The charcoal works by absorbing impurities such as chlorine, and adding minerals such as calcium. These charcoal refills are pre-washed and vacuum sealed so they are ready for immediate use. Simply drop the charcoal into your water (we recommend one stick per litre) then leave for 1 hour and enjoy your filtered water. Each Binchotan charcoal filter will last for 6 months. After this period, they are recyclable for other uses around the home, such as plant fertiliser. Did you know that activated charcoal can also help you to keep your body clean? Discover our Charcoal Soap Bars here!