Active Charcoal Water Filter, Black & Blum (pack of 4)

(£6.25 each)

If you’ve already converted to binchotan charcoal water filtering, you’ll know just how effective it can be at giving your water bottle a crisp, pure taste. This pack of four replacement filters offers two more years of natural filtration, using a natural technique that has been perfected over the centuries in Japan.
Just pop your binchotan active charcoal into your regular water bottle, rattle-stopping coil and all, and allow it time to draw impurities out of the water. Leaving it to work its magic overnight is ideal, but you should start tasting the difference after only an hour. This filter will remain effective for up to six months and can simply be boiled at the three-month stage to recharge if you notice any reduction in taste. Once you’re ready to replace your filter, you can find refills in our shop, and any spent filters can be planted to return the nutrients from the sustainably sourced wood to the ground.
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At Black & Blum, the team focus on original design and sustainability. Dan Black and Martin Blum met at Northumbria University, and went on to found Black & Blum in 1998, where “we put our hearts and souls into every product we make”. Their award-winning designs are sleek and perfectly functional, and crafted to encourage re-use and a healthy, enriching lifestyle. Black & Blum products are built to last, using eco-friendly materials wherever possible. Black & Blum is certified 1% for the planet.

Storage & prep

Store in a cool, dry place.


Food Contact Material: PLASTIC - aPET/rPET/cPET, non-black (Recyclable - Widely recyclable)
Sleeves/Wraps/Seals: PAPER/CARD (Recyclable - Widely recyclable)
Contains BPA: No - does not contain BPA

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