Kishu Charcoal Filters


Kishu Charcoal is ready to use upon opening the package. Simply place in any pitcher or water bottle and add tap water. Kishu begins adsorbing impurities immediately* while also imparting healthy minerals like calcium and magnesium. These give your water a delicious, clean taste.

*While Kishu begins working immediately bonding with toxins, for optimal adsorption:
Kishu To Go – approximately 16 oz of water/ 1 hour
Kishu Regular – approximately 2 quarts of water/ 4 hours; for chloramines, 6 hours
Kishu X-Large – approximately 3 gallons of water/ 24 hours

The Process

Once Kishu Charcoal is received from the artisans in Japan, it’s prepared for customers. First, it’s cleaned in large tubs of water to remove its protective ash. After drying, each piece is hand cut into one of three sizes: REGULAR for pitchers, TO GO for water bottles, X-LARGE for 3-5 gallon jugs. Then each Kishu stick is boiled in a large pot of water, dried for 24 hours, and heat-sealed it in its compostable sleeve. Now Kishu is ready for shipment!


Kishu Charcoal should be boiled once per month to keep its pores open. Simply place in a shallow pan of water and bring to a boil for 5 minutes. Allow to dry for 30 minutes before reusing. While a small amount of flaking may occur, the stick will stay completely intact; Kishu will NEVER deteriorate. After four months, Kishu should be replaced. Please use the handy boiling schedule, located inside the package label, to keep track of your Kishu stick’s life.

Second Life

Kishu Charcoal has great secondary uses: absorbing odors in the refrigerator (better than baking soda!) or mixed into your garden soil where it will help improve water absorption.

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Additional information


To-Go, Regular, XL, Brita, Granules, Pet

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