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Clean Waters

Seattle-based Grayl is on a mission to change the way the world purifies and drinks water with the revolutionary Water Filtration Cup, a 16 oz travel cup that uses a French Press system to filter water. Just fill, press an inner cup into the outer drinking cup and in 15 seconds you’ve got safe, portable drinking water, 99.99% free of yucky stuff like bacteria, protozoa, arsenic, lead, BPA and pesticides. There’s no waiting, pumping, squeezing or disposable plastic bottles involved. The founder of Grayl, Nancie Weston was so determined to create a beautifully designed all-in-one filtration/drinking cup, that even after being told by twelve engineers her idea would not work, she mortgaged her home and started the business. The cup is made of food grade silicone and durable,18/8 stainless steel. The advanced G3+ filtration technology combines fast flow with an unrivaled ability to grab microscopic particulates. Each refillable cartridge is good for up to 300 filtered drinks. and keeps you safely hydrated about town or on international travels.

Grayl

Water Filtration Press

Clean Waters

Seattle-based Grayl is on a mission to change the way the world purifies and drinks water with the revolutionary Water Filtration Cup, a 16 oz travel cup that uses a French Press system to filter water. Just fill, press an inner cup into the outer drinking cup and in 15 seconds you’ve got safe, portable drinking water, 99.99% free of yucky stuff like bacteria, protozoa, arsenic, lead, BPA and pesticides. There’s no waiting, pumping, squeezing or disposable plastic bottles involved. The founder of Grayl, Nancie Weston was so determined to create a beautifully designed all-in-one filtration/drinking cup, that even after being told by twelve engineers her idea would not work, she mortgaged her home and started the business. The cup is made of food grade silicone and durable,18/8 stainless steel. The advanced G3+ filtration technology combines fast flow with an unrivaled ability to grab microscopic particulates. Each refillable cartridge is good for up to 300 filtered drinks. and keeps you safely hydrated about town or on international travels.
Independent Maker
Sustainable Living

Grommet Launch Conversation

Grommet Launch Conversation

  • Keri
    Keri

    Dear Grommet Fans,

    What if you could French Press your way to clean water anywhere in the world? We are thrilled to partner with Grommet to bring you Grayl - the Water Filtration Cup. It works like a French Press to filter water on the go--from tap to trail to travel--just Fill, Press, Drink! We look forward to answering your questions.

  • Loretta
    Loretta
    8/4/2014 12:30 PM

    Does this filter water properly in Mexico?

  • Keri
    Keri – Special Guest
    8/4/2014 12:59 PM

    @Loretta We would recommend our Purifier for Mexico, which removes 99.999% of bacteria, protozoan cysts and viruses. Our standard Filter (included with the cup) removes 99.99% of bacteria and 99.94% of protozoan cysts. The Purifier adds virus protection.

  • Dave
    Dave
    8/4/2014 12:34 PM

    Sounds like a great item to travel with, especially in areas with questionable water quality. Does it come with replacement filters? What do the replacement filters cost? How do you replace the filter? Thanks!

  • Keri
    Keri – Special Guest
    8/4/2014 1:01 PM

    @Dave Our filter cartridges are interchangeable. Here is a video that shows you how they work: http://youtu.be/12fCfeVkRbk

    Our cartridges are replaceable. The Filter (one included with the cup) is $19.95. Our Purifier (optional, adds virus protection) is $39.95.

    We are working on new filtration levels/cartridges and all will be interchangeable. Thanks!

  • Tedd
    Tedd
    8/4/2014 12:36 PM

    What about obtaining new filters? Where and how much?

  • Larry
    Larry
    8/4/2014 12:45 PM

    The heck with Mexico, will it work in Ohio?

  • Dorothy
    Dorothy
    8/4/2014 12:52 PM

    Would this work on the algae in Lake Erie by Toledo?

  • Keri
    Keri – Special Guest
    8/4/2014 1:09 PM

    Hi @Dorothy,

    We have not tested for algae bloom toxins (microcystin) and so we can't make any claims on it at this time.

  • Anton
    Anton
    8/4/2014 12:56 PM

    HOW DOES THIS WORK WITH HIKING AND BACKPACKING, HANDLING GIARDIA, ETC.?

  • Keri
    Keri – Special Guest
    8/4/2014 1:05 PM

    @Anton GRAYL definitely works outdoors.

    GRAYL filters flavor, odor, particulates and many heavy metals (e.g. lead, arsenic, chromium) and chemicals (e.g. chlorine, benzene, chloroform) plus:

    Filter (included): 99.99% of bacteria (e.g. E.coli, Salmonella) and 99.94% of protozoa (i.e Cryptosporidium, Giardia). Great for tap water and many outdoor sources.

    Purifier (optional): 99.999% of bacteria and protozoa plus viruses (e.g. Hepatitis A, SARS)- ideal for international travel/developing countries.

  • Marie
    Marie
    8/4/2014 1:04 PM

    Ultra-powdered activated carbon derived from coconut husks ---

    Any issues with people with coconut allergies??

  • Keri
    Keri – Special Guest
    8/4/2014 1:17 PM

    Hi @Marie,

    We have not tested for this but we think safest not to try it out with our current cartridges. The great thing about our ultra PAC is that it has the most surface area compared to other AC out there (often in granular or block form) and we use no chemicals in our filtration process.

    We do have a new cartridge for tap water coming out in a few months that will not be derived from coconut, however.

  • Thomas E.
    Thomas E.
    8/4/2014 1:46 PM

    Has anyone tested this (with Purifier of course) in China on Chinese tapwater?

  • Keri
    Keri – Special Guest
    8/4/2014 1:47 PM

    @Thomas E.

  • Keri
    Keri – Special Guest
    8/4/2014 1:50 PM

    Hi @Thomas E. - Both our CEO and COO have (Nancie in the video is our CEO). They use the Purifier. Our Purifier removes 99.999% of bacteria, protozoan cysts and viruses. It also filters many heavy metals, chemicals, flavor and odor. Thanks!

  • KJ
    KJ
    8/4/2014 1:57 PM

    How often do the filters need to be replaced? How do you KNOW WHEN to replace these filters?

  • Keri
    Keri – Special Guest
    8/4/2014 2:09 PM

    @KJ The average filter replacement is after 300 uses (40 gallons/150L).

    Your filter/purifier will become harder and harder to push as it fills with contaminants. You really will know when it's getting time to change the filter, and the slower filtration rate towards the end of the lifespan ensure the filter is still doing what it needs to do. And the filter ends up clogged, so nothing gets through - so there's no chance that you'll ingest pathogens from an old filter.

    300 is the average use (40 gallons)- and for a daily user we say to replace the filter every 3 months. You can also average out usage if you are using it on trips or travel (i.e. when using the Purifier). You can dry out our cartridges and store them in an airtight plastic bag and they will last a good year.

    Starting early next year, we're going to unveil a patented solution so you'll always know that your filter has plenty of life left. When it's ready, that solution will work with your existing cups.

    I hope that helps!

  • Lynn
    Lynn
    8/4/2014 2:09 PM

    wondered how you know when to change filter?

  • Keri
    Keri – Special Guest
    8/4/2014 2:16 PM

    @Lynn

    The average filter replacement is after 300 uses (40 gallons/150L).

    Your filter/purifier will become harder and harder to push as it fills with contaminants. You really will know when it's getting time to change the filter, and the slower filtration rate towards the end of the lifespan ensure the filter is still doing what it needs to do. And the filter ends up clogged, so nothing gets through - so there's no chance that you'll ingest pathogens from an old filter.

    300 is the average use (40 gallons)- and for a daily user we say to replace the filter every 3 months. You can also average out usage if you are using it on trips or travel (i.e. when using the Purifier). You can dry out our cartridges and store them in an airtight plastic bag and they will last a good year.

    Starting early next year, we're going to unveil a patented solution so you'll always know that your filter has plenty of life left. When it's ready, that solution will work with your existing cups.

    I hope that helps!

  • Beverly
    Beverly
    8/4/2014 2:22 PM

    How about flouride?

  • Keri
    Keri – Special Guest
    8/4/2014 2:37 PM

    @Beverly

  • Keri
    Keri – Special Guest
    8/4/2014 2:41 PM

    Hi @Beverly,

    GRAYL filters less than 30% of fluoride, so we don't claim to be a fluoride filter. Fluoride requires a different type of technology, but making a cartridge for fluoride is on our list of topics for future products.

  • James
    James
    8/4/2014 5:47 PM

    Would it make Lake Erie watermelon Toledo safe?

  • James
    James
    8/4/2014 5:49 PM

    @James not watermelon. Over zealous spellcheck changed water in to watermelon

  • Keri
    Keri – Special Guest
    8/4/2014 5:53 PM

    Hi @James,

    Unfortunately we have not tested for algae bloom toxins (microcystin) and so we can't make any claims on it at this time.

  • laurie ann
    laurie ann
    8/4/2014 9:33 PM

    Does this filter out chloramines and any other forms of chlorine?

The launch day conversation has ended. Please direct further questions about this Grommet to our Community Experience Team.

 

Grayl

Water Filtration Press

Clean Waters

Seattle-based Grayl is on a mission to change the way the world purifies and drinks water with the revolutionary Water Filtration Cup, a 16 oz travel cup that uses a French Press system to filter water. Just fill, press an inner cup into the outer drinking cup and in 15 seconds you’ve got safe, portable drinking water, 99.99% free of yucky stuff like bacteria, protozoa, arsenic, lead, BPA and pesticides. There’s no waiting, pumping, squeezing or disposable plastic bottles involved.

The founder of Grayl, Nancie Weston was so determined to create a beautifully designed all-in-one filtration/drinking cup, that even after being told by twelve engineers her idea would not work, she mortgaged her home and started the business.

The cup is made of food grade silicone and durable,18/8 stainless steel. The advanced G3+ filtration technology combines fast flow with an unrivaled ability to grab microscopic particulates. Each refillable cartridge is good for up to 300 filtered drinks. and keeps you safely hydrated about town or on international travels.
Read More Read Less
The Grayl Bottle - Water Filtration Press

Grommet Launch Conversation

  • Keri
    Keri

    Dear Grommet Fans,

    What if you could French Press your way to clean water anywhere in the world? We are thrilled to partner with Grommet to bring you Grayl - the Water Filtration Cup. It works like a French Press to filter water on the go--from tap to trail to travel--just Fill, Press, Drink! We look forward to answering your questions.

  • Loretta
    Loretta
    8/4/2014 12:30 PM

    Does this filter water properly in Mexico?

  • Keri
    Keri – Special Guest
    8/4/2014 12:59 PM

    @Loretta We would recommend our Purifier for Mexico, which removes 99.999% of bacteria, protozoan cysts and viruses. Our standard Filter (included with the cup) removes 99.99% of bacteria and 99.94% of protozoan cysts. The Purifier adds virus protection.

  • Dave
    Dave
    8/4/2014 12:34 PM

    Sounds like a great item to travel with, especially in areas with questionable water quality. Does it come with replacement filters? What do the replacement filters cost? How do you replace the filter? Thanks!

  • Keri
    Keri – Special Guest
    8/4/2014 1:01 PM

    @Dave Our filter cartridges are interchangeable. Here is a video that shows you how they work: http://youtu.be/12fCfeVkRbk

    Our cartridges are replaceable. The Filter (one included with the cup) is $19.95. Our Purifier (optional, adds virus protection) is $39.95.

    We are working on new filtration levels/cartridges and all will be interchangeable. Thanks!

  • Tedd
    Tedd
    8/4/2014 12:36 PM

    What about obtaining new filters? Where and how much?

  • Larry
    Larry
    8/4/2014 12:45 PM

    The heck with Mexico, will it work in Ohio?

  • Dorothy
    Dorothy
    8/4/2014 12:52 PM

    Would this work on the algae in Lake Erie by Toledo?

  • Keri
    Keri – Special Guest
    8/4/2014 1:09 PM

    Hi @Dorothy,

    We have not tested for algae bloom toxins (microcystin) and so we can't make any claims on it at this time.

  • Anton
    Anton
    8/4/2014 12:56 PM

    HOW DOES THIS WORK WITH HIKING AND BACKPACKING, HANDLING GIARDIA, ETC.?

  • Keri
    Keri – Special Guest
    8/4/2014 1:05 PM

    @Anton GRAYL definitely works outdoors.

    GRAYL filters flavor, odor, particulates and many heavy metals (e.g. lead, arsenic, chromium) and chemicals (e.g. chlorine, benzene, chloroform) plus:

    Filter (included): 99.99% of bacteria (e.g. E.coli, Salmonella) and 99.94% of protozoa (i.e Cryptosporidium, Giardia). Great for tap water and many outdoor sources.

    Purifier (optional): 99.999% of bacteria and protozoa plus viruses (e.g. Hepatitis A, SARS)- ideal for international travel/developing countries.

  • Marie
    Marie
    8/4/2014 1:04 PM

    Ultra-powdered activated carbon derived from coconut husks ---

    Any issues with people with coconut allergies??

  • Keri
    Keri – Special Guest
    8/4/2014 1:17 PM

    Hi @Marie,

    We have not tested for this but we think safest not to try it out with our current cartridges. The great thing about our ultra PAC is that it has the most surface area compared to other AC out there (often in granular or block form) and we use no chemicals in our filtration process.

    We do have a new cartridge for tap water coming out in a few months that will not be derived from coconut, however.

  • Thomas E.
    Thomas E.
    8/4/2014 1:46 PM

    Has anyone tested this (with Purifier of course) in China on Chinese tapwater?

  • Keri
    Keri – Special Guest
    8/4/2014 1:47 PM

    @Thomas E.

  • Keri
    Keri – Special Guest
    8/4/2014 1:50 PM

    Hi @Thomas E. - Both our CEO and COO have (Nancie in the video is our CEO). They use the Purifier. Our Purifier removes 99.999% of bacteria, protozoan cysts and viruses. It also filters many heavy metals, chemicals, flavor and odor. Thanks!

  • KJ
    KJ
    8/4/2014 1:57 PM

    How often do the filters need to be replaced? How do you KNOW WHEN to replace these filters?

  • Keri
    Keri – Special Guest
    8/4/2014 2:09 PM

    @KJ The average filter replacement is after 300 uses (40 gallons/150L).

    Your filter/purifier will become harder and harder to push as it fills with contaminants. You really will know when it's getting time to change the filter, and the slower filtration rate towards the end of the lifespan ensure the filter is still doing what it needs to do. And the filter ends up clogged, so nothing gets through - so there's no chance that you'll ingest pathogens from an old filter.

    300 is the average use (40 gallons)- and for a daily user we say to replace the filter every 3 months. You can also average out usage if you are using it on trips or travel (i.e. when using the Purifier). You can dry out our cartridges and store them in an airtight plastic bag and they will last a good year.

    Starting early next year, we're going to unveil a patented solution so you'll always know that your filter has plenty of life left. When it's ready, that solution will work with your existing cups.

    I hope that helps!

  • Lynn
    Lynn
    8/4/2014 2:09 PM

    wondered how you know when to change filter?

  • Keri
    Keri – Special Guest
    8/4/2014 2:16 PM

    @Lynn

    The average filter replacement is after 300 uses (40 gallons/150L).

    Your filter/purifier will become harder and harder to push as it fills with contaminants. You really will know when it's getting time to change the filter, and the slower filtration rate towards the end of the lifespan ensure the filter is still doing what it needs to do. And the filter ends up clogged, so nothing gets through - so there's no chance that you'll ingest pathogens from an old filter.

    300 is the average use (40 gallons)- and for a daily user we say to replace the filter every 3 months. You can also average out usage if you are using it on trips or travel (i.e. when using the Purifier). You can dry out our cartridges and store them in an airtight plastic bag and they will last a good year.

    Starting early next year, we're going to unveil a patented solution so you'll always know that your filter has plenty of life left. When it's ready, that solution will work with your existing cups.

    I hope that helps!

  • Beverly
    Beverly
    8/4/2014 2:22 PM

    How about flouride?

  • Keri
    Keri – Special Guest
    8/4/2014 2:37 PM

    @Beverly

  • Keri
    Keri – Special Guest
    8/4/2014 2:41 PM

    Hi @Beverly,

    GRAYL filters less than 30% of fluoride, so we don't claim to be a fluoride filter. Fluoride requires a different type of technology, but making a cartridge for fluoride is on our list of topics for future products.

  • James
    James
    8/4/2014 5:47 PM

    Would it make Lake Erie watermelon Toledo safe?

  • James
    James
    8/4/2014 5:49 PM

    @James not watermelon. Over zealous spellcheck changed water in to watermelon

  • Keri
    Keri – Special Guest
    8/4/2014 5:53 PM

    Hi @James,

    Unfortunately we have not tested for algae bloom toxins (microcystin) and so we can't make any claims on it at this time.

  • laurie ann
    laurie ann
    8/4/2014 9:33 PM

    Does this filter out chloramines and any other forms of chlorine?

The launch day conversation has ended. Please direct further questions about this Grommet to our Community Experience Team.