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black + blum: eau good bottle

eau good bottle

Turn on the tap

With over 22 billion plastic water bottles discarded around the world every year, Martin and Dan, the founders of London-based black + blum wanted to find a way make tap water taste better.

Eau Good is a reusable water bottle uniquely designed to hold a Binchotan filter that naturally reduces chlorine, mineralizes drinking water, and balances the pH.

Bincho-what, you say? Binchotan is active charcoal derived from oak that has been regarded as the highest quality charcoal for purifying water since it was discovered in
Japan in the 17th century.

Eau Good reusable bottles are aesthetically pleasing and comfortable to hold, as well as BPA free and top-rack dishwasher safe.

Turn on the tap and enjoy the difference.

—Adeeva
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black + blum - eau good water bottle

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Grommet Launch Conversation

  • Dan
    Dan

    Hello from everyone at black+blum. We are writing this from London (England), on the other side of the pond! We're so excited to be partnering with our friends at The Grommet to feature our 'Eau Good' filtered water bottle. Since launching this design it has had an amazing reaction and the popularity continues to grow every day.

    Our aim was always to try and encourage people to drink their local tap water by making it taste better, whilst giving people a convenient and stylish way to keep hydrated on the go. There are also many secondary uses for the charcoal; dare I suggest it can be made into a wind chime?! We hope you'll take the plunge and stand out from the crowd.

  • Kay
    Kay
    10/11/2013 12:35 PM

    I don't know,i like the idea but that black thing floating in my water would be unappealing to me.Can you reuse it?

  • linda
    linda
    10/11/2013 12:59 PM

    @Kay

  • Amy
    Amy – Grommet Team
    10/11/2013 1:39 PM

    Hi Kay,

    You can indeed re-use it. If you "re-activate" it after 3 months, it will last for a full 6 months. You can then re-use it again in your garden as fertilizer.

    You can always find all of this information in the details portion under the "orange" add to cart button.

    In regards to the unappealing nature of the black filter floating in your bottle, this is actually how most filters work, except that they are usually packaged not to show. This is a more eco-friendly version for that reason.

  • David
    David
    10/11/2013 12:59 PM

    Ummm...maybe I'm just misunderstanding the principle here, but I've always understood a "filter" to go between a source and a destination. This seems like more of an adsorbent device - which would take time to work on a given quantity of water. Since the description states that this is designed to be used for tap water (and not water of suspect quality - such as stream or lake water), I suppose that the idea is that even if the taste quality was not improved by the time of drinking, there would be no health risks.

  • Amy
    Amy – Grommet Team
    10/11/2013 2:42 PM

    Hi David,

    The significance of this charcoal is that the charring and processing of the oak creates a porous surface that also attracts the ions of contaminants, pulling them in to the filter. The filter also releases minerals such as calcium, iron and magnesium back into the water which enhances it's taste and health benefits.

  • Ric
    Ric
    10/11/2013 12:59 PM

    Dan, interesting. How many liters (ha ha, see, even across the pond, I am in tune with the metric system) does each bottle hold? And how many liters does each filter last through? Hmmm. I see an insulated bottle on another Grommet page; maybe I can use that filter in that bottle to keep my drink ice cold? Oh, so many great products on Grommet.

  • Amy
    Amy – Grommet Team
    10/11/2013 2:01 PM

    Hi Ric,

    The bottle is 27 ounces which equates to about 3/4 of a liter. The estimated amount of time it will last with daily use is 6 months. All you need to do is boil the filter after 3 months and that will re-activate it for another 3 months use.

    Good question about using the filter within another bottle like our Eco-Vessel. You can certainly transfer the filter into another bottle, but the beauty of this design is that it holds the filter in place. Other bottles won't hold it as securely so while it will work without a problem, you may just notice a sound or movement as you move the bottle.

  • Guest
    Guest
    10/11/2013 1:17 PM

    Hello- Does the filter remove lead and other heavy metals, in addition to chlorine? And does it remove flouride from tap water?

  • Amy
    Amy – Grommet Team
    10/11/2013 2:05 PM

    Hi there,

    This filter is for purifying already safe to drink tapwater, by reducing chlorine and balancing the ph levels.

  • Guest
    Guest
    10/11/2013 1:17 PM

    More details please on the charcoal production process to attain final filter product, e.g. where does the oak come from, is it sustainably harvested or is it a secondary use of wood remnants? What country produces the charcoal? Grommet has inquisitive consumers!

  • Amy
    Amy – Grommet Team
    10/11/2013 2:37 PM

    These are great questions, thank you. The wood is sustainably sourced and charred at a low temperature for a good amount of time and then raised to make the charcoal red hot. The rapid rise in temperature, followed by a rapid cooling, incinerates the bark and leaves a smooth, hard surface. If you strike it, you'll hear a clear, metallic sound. This method of charring is what gives the charcoal an incredibly pourous surface and allows it to absorb any contaminants.

  • Guest
    Guest
    10/11/2013 1:21 PM

    It's a great concept. Thanks to the accompanying product video I did learn a little about features and usage; i.e., 6 months is the life of one charcoal filter, water tastes best if left to purify for 6-8 hours in fridge. But as someone else inquired, how much water does one bottle hold? In order to meet the minimum requirement for daily water consumption, I need to know so that I can determine how many bottles would provide the desired amount of purified water. Thank you.

  • David
    David
    10/11/2013 1:27 PM

    @Guest - this is the strangest thing, here on the Grommet site: at some point, I stopped seeing the links to videos. When I posted my comment above, I didn't even know there was a video for this product. I don't know if it's my browser (Firefox), or some other setting that is keeping me from even being able to tell which Grommets have videos and which ones don't. But I even have this issue when I browse on my phone...

  • Amy
    Amy – Grommet Team
    10/11/2013 1:33 PM

    Hi David,

    Sorry to hear that you are having this trouble. We haven't heard anyone else say they've experienced this. Do you just see a blank space where the video might normally be? Any info you might have could help us to determine the problem. It could indeed be your browser.

  • Amy
    Amy – Grommet Team
    10/11/2013 2:14 PM

    Good questions on how much water we should be drinking each day. It does vary according to research, but the standard says to drink 64 ounces each day and the Eau Good bottle holds 27 ounces. This would equate to about 3 Eau good bottles of water per day.

    That's why it's the best value to purchase 3 or more bottles.

  • Jules
    Jules – Grommet Team
    10/12/2013 9:35 AM

    @David Grommet CEO here. Try clicking on any story you see in the big slide show on our home page. The video should be right at the top. HOWEVER, we redesigned our site so that if you are clicking on a specific product photo, the video is presented further down on the page.

    The theory is that if you click on a photo we thing you are specifically interested in purchasing a Grommet and want to see the product details in writing at that point. Hope that helps.

    And as Amy says, if you want to shoot us over your specific computer configuration (type, operating system, browser) we might be able to weigh in further.

  • Guest
    Guest
    10/11/2013 1:33 PM

    What about removing BPA? Much of today's bottled water has been filtered but then stored in plastic bottles that leach BPA.

    Could I use the filters in a commercial bottle of watter to remove the leached BPA<

  • Amy
    Amy – Grommet Team
    10/11/2013 2:09 PM

    Hi there,

    This filter is specifically designed to be used with safe to drink tap water. We don't recommend placing it into bottled water. This is intended to promote drinking from the tap.

  • Thomas
    Thomas
    10/11/2013 2:31 PM

    Sounds great but my gf wants a bigger bottle. Any plans for such in the future?

  • Amy
    Amy – Grommet Team
    10/11/2013 2:43 PM

    Hi Thomas,

    Right now we are selling the 27 ounce size but will be sure to let you know if that changes.

  • christine
    christine
    10/11/2013 3:24 PM

    @Amy Do you have to change the filter, if so how often, where do we get it and how much is it?

  • Amy
    Amy – Grommet Team
    10/11/2013 4:48 PM

    Hi Christine,

    As long as you boil the filter after 3 months to "re-activate" it, it will last for a full 6 months. We sell the refills here as well and they are available for $10 for a set of 2. If you look to the right of the page, below the story, you will see an option to purchase the refills.

  • Lynelle Hope
    Lynelle Hope
    10/11/2013 2:51 PM

    While I applaud innovators coming up with new techniques, this is one I would not purchase. Think outside of the box and develop a filtration system in a reusable bottle that will do more than purify and change taste . . . I want one that gets rid of microbial cysts and the horrible parasites that are creeping more and more into our water supply!

  • Amy
    Amy – Grommet Team
    10/11/2013 4:43 PM

    Hi there,

    Thanks for your feedback and his is great for inventors to keep in mind. This particular filter is specifically designed for use with safe tap water and for those who simply want their already safe water to taste better, this is the perfect item.

  • Sherry
    Sherry
    10/11/2013 7:51 PM

    Approximately how much does this raise the pH?

  • Mitzi
    Mitzi
    10/12/2013 7:47 AM

    Hi. Love so many of the products Grommet showcases. Question on the oak filter: what happens to the germs that must accumulate from drinking out of the bottle? If the oak is porous and you reactivate it by boiling after 3 months it must still soak up germs in the meantime. I assume you remove the filter when you wash the bottle, then put the filter back in to purify a new batch of water. It sounds as if the filter takes care of chlorine and improves taste by mineralization, but can't kill the germs that are introduced into the water by drinking from the bottle. I know you could pour the water in a glass, but this is clearly designed for drinking on the go. Just curious.

  • christine
    christine
    10/12/2013 8:18 AM

    I bought this bottle at Stanford Hospital's gift store. I love the bottle, it's a great design, feels good in your hand. The only question I have is that in so many municipalities today we have changed from chlorine to chloramine . I have found this horrible for our pipes in our house and I don't believe this filter would remove it from our tap water. Can you tell me if it does? Chloramine is common in tap water now, I refuse to drink it. I fill my bottle from a large 5gal bottles that are delivered weekly. All said, I think this bottle it worth the price. Lastly, do you sell replacement corks?

  • Amy
    Amy – Grommet Team
    10/12/2013 5:02 PM

    Hi All,

    Thanks so much for all your important questions. This Grommet is so unique in many ways and we know how important it is for our community to have a thorough understanding before a purchase.

    Dan, the founder, or one of his colleagues will be popping onto the board very soon and will be addressing these questions as well.

The comment board is no longer open for this Grommet.

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