The ‘Eau Good!’ is a unique filter water bottle from Black+Blum that uses a traditional Japanese binchotan charcoal to make your tap water taste amazing. With a retro design that utilises a cork stopper and stainless steel lock wire, the plastic bottle has an attractive and ergonomic shape that harks back to old Victorian bottles.

Binchotan active charcoal has been used in Japan to purify water since the 17th century to reduce chlorine, mineralise water and balance the pH levels. Simply drop and lock the charcoal in the bottle, fill with tap water and wait for the charcoal to filter chemicals overnight ideally but you can taste the difference in just one hour.

When the binchotan is used once a day it should last for six months, then you can recharge it by boiling in water for ten minutes and leaving to dry in sunlight which should make it last for up to six months. 


  • Plastic drinks bottle that makes tap water taste great
  • Cork stopper and stainless steel lock wire
  • Material: BPA free tritan, cork, stainless steel, silicon
  • Includes: binchotan active charcoal filter
  • Black+Blum will send automatic emails for when to boil and replace charcoal


  • Dimensions: H: 24cm x W: 8.5cm
  • Capacity: 800ml

Product Details

  • Black and Blum
  • Green
  • BPA Free Tritan, Cork, Stainless Steel, Silicon
Size / Fit:
  • Dimensions (WxH): 8.5 x 24cm
    Capacity: 800ml

Black and Blum

Black+Blum Eau Good Water Filter Bottle - Lime


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Delivery Information

UK next day delivery available until 9pm plus over 160 countries shipped to worldwide.

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If ordered before 9pm, delivered by courier next working day. Available on orders placed before 9pm (2pm weekends and Bank Holidays) for delivery next business day. Applies to most delivery addresses within mainland UK.

Returns Policy

We are confident that you will be happy with your purchase. However, if you are not satisfied you can return your item for a full refund.

Please see our returns policy.

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Black+Blum Eau Good Water Filter Bottle - Lime

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Black+Blum Eau Good Water Filter Bottle - Lime
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