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The uKeg™ growler keeps beer fresh and cold on the go. Vacuum insulated stainless steel with carbonation cap, pressure gauge and tap.
The uKeg™ growler keeps beer fresh and cold on the go. Vacuum insulated stainless steel with carbonation cap, pressure gauge and tap.
The uKeg™ growler keeps beer fresh and cold on the go. Vacuum insulated stainless steel with carbonation cap, pressure gauge and tap.
10,293 backers pledged $1,559,525 to help bring this project to life.

About this project

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The uKeg Pressurized Growler for Fresh Beer

$1,559,525

10,293

If you’re like us, many of your favorite microbrews aren't sold in bottles. When you bring home that limited-release double IPA from your favorite brewpub, chances are it comes home in a glass growler. However, we know glass growlers have their drawbacks: They go flat once they're opened, they let in air, which spoils your beer, and they don't travel well.

Our mission at GrowlerWerks is to make a growler that works. One that doesn’t let air into your beer, maintains perfect carbonation from the first pour to the last, and keeps beer cold for hours – all in a product you'll love showing off at your friend's next BBQ or party. GrowlerWerks was created by local Portlanders who love craft beer. We've drawn on a combined 47 years of engineering and product-design experience to make a better way to store beer, so it always taste exactly how the brewmaster intended.

Our design is complete, the prototype works great, and we've partnered with a manufacturer. Now with your help we can bring this idea and product to market! Thanks for supporting our project.

Using the cap is as easy as using a seltzer bottle or refillable whipped cream dispenser.  It's innovative feature is variable pressure regulation -- that can be set from zero (off) up to 15psi. On the uKeg, the cap automatically regulates pressure to continuously maintain your desired carbonation level. You don't need to manually refill or use separate filling devices. One CO2 cartridge keeps one uKeg growler full of beer fresh for up to 4 weeks.

  • Load a CO2 cartridge in the holder and screw onto bottom of the cap. 
  • Fill the growler with your favorite brew and screw on the cap.
  • Set your desired carbonation level with the selector dial. The regulator automatically maintains your setting.
  • Pour your brew, sip, enjoy, repeat.

CO2 cartridges are readily available online or at kitchen stores for less than $0.50 ea. Two cartridges will be included with each uKeg.

Cool Hunting “A new in-growler carbonation system keeps beer cool and fizzy all day long.”

Food and Wine "uKeg May Have Solved the Biggest Problem with the Beer Growler."

PDX Eater “PDX Ingenuity Means No More Flat Beer.”

Uncrate “The uKeg Pressurized Growler maintains perfect carbonation from the first pour to the last.”

First We Feast “The uKeg Pressurized Growler Could Be A Microbrew Game-Changer.”

John Foyston (The Oregonian) “Brave new growler: uKeg will keep your beer cold AND carbonated.”

Cool Material “Besides keeping that microbrew fresher for much longer, the uKeg looks damn good with brass accents and whatever tap handle you feel like tossing on it.”

Portland Tribune“Finally, a sign that we show our local innovators mad love: A Kickstarter project for Portland-based GrowlerWerks was funded in one day.”

Dude I Want That “keep contents cold for hours at parties, tailgates, and in your friend Cornelius' basement during the LoTR movie marathon.”

Portland Craft Beer "GrowlerWerks isn't reinventing the growler, they're trying to create a new fresh beer system, unlike any growler before."

Oregon Business “The beer drinkers of the world evidently think that's a pretty great idea.”

Risks and challenges

There are always unforeseen challenges in bringing a brand new product into production. As a team of engineers with a combined several decades of experience in R&D, high tech and consumer products, we are confident that any issues we encounter moving into production can be quickly resolved.

We've already chosen the suppliers who will be involved in the manufacture of our product. After several discussions with their engineers, we’ve integrated their feedback into our designs and they are now ready to start tooling.

We've partnered with a local supply chain management company that employs manufacturing engineers where the factories are located. We will be actively involved with the tooling and validation, and plan to travel to the factories in order to inspect and test the initial production pieces before shipment.

We will keep you up to date with regular emails as our product gets closer to production, and we'll be doing everything possible to stay on schedule and deliver you a high quality and beautiful product.

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  1. Select this reward

    Pledge $5 or more About $5

    Two (2) GrowlerWerks coasters. U.S. shipping included.

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    Two (2) GrowlerWerks glasses. U.S. shipping included.

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    Pledge $20 or more About $20

    GrowlerWerks t-shirt. Original designs for both men and women. Men indicate size in charcoal grey; women indicate size in orange or indigo. U.S. shipping included.

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    Pledge $45 or more About $45

    GrowlerWerks work shirt. The shirts in our video! One cool style for men and women, choose size. U.S. shipping included.

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    Pledge $79 or more About $79

    uKeg 64 Early Bird. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $99 or more About $99

    The uKeg 64. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $99 or more About $99

    Build Your Own Reward. Add up the costs for all the items you want and pledge that amount. We'll contact you to confirm your order. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $129 or more About $129

    The uKeg 128. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $130 or more About $130

    *Stretch Reward* Copper Plated uKeg 64. The uKeg 64 with a copper plated finish on the exterior. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $130 or more About $130

    *Stretch Reward* Copper Plated uKeg 64. The uKeg 64 with a copper plated finish on the exterior. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $149 or more About $149

    *Stretch Reward* Laser Engraved uKeg 64
    The uKeg 64 with your own artwork laser engraved on the left side (5.25"h x 1.5"w). U.S. shipping included

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    Pledge $150 or more About $150

    uKeg 64 Gift Pack. Includes two (2) glasses, t-shirt, carrying bag, and additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    258 backers
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    Pledge $160 or more About $160

    *Stretch Reward* Copper Plated uKeg 128. The uKeg 128 with a copper plated finish on the exterior. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Reward no longer available 13 backers
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  14. Select this reward

    Pledge $160 or more About $160

    *Stretch Reward* Copper Plated uKeg 128. The uKeg 128 with a copper plated finish on the exterior. Includes additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $179 or more About $179

    *Stretch Reward* Laser Engraved uKeg 128
    The uKeg 128 with your own artwork laser engraved on the left side (6"h x 2.25"w). U.S. shipping included

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    66 backers
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  16. Select this reward

    Pledge $180 or more About $180

    uKeg 128 Gift Pack. Includes two (2) glasses, t-shirt, carrying bag, and additional custom tap handle. A gift brochure will ship for the holidays. U.S. shipping included.

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    Pledge $225 or more About $225

    uKeg 64 Pro Pack. Like variety? Includes two (2) uKeg 64's and a wooden carrying box that holds both of your growlers. U.S. shipping included.

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    Pledge $285 or more About $285

    uKeg 128 Pro Pack. Includes two (2) uKeg 128's and two (2) carrying bags for your growlers. U.S. shipping included.

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    Pledge $800 or more About $800

    *Stretch Reward* Brewery Tour Package -
    - June 26 and 27, 2015
    A weekend in Portland and brewery tour of Portland with the GrowlerWerks team. Friday and Saturday Night at the Crystal Hotel in downtown Portland, a Brewvana hosted brewery tour of some of our favorite local breweries (actual beer not included), and a visit to the GrowlerWerks design center to pick up the uKeg of your choice.

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    Pledge $900 or more About $900

    uKeg 64 Reseller's 12-Pack. Includes twelve (12) uKeg 64's (planned retail $119). Additional charge for shipping, we will contact you separately.

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    Pledge $1,150 or more About $1,150

    uKeg 128 Reseller's 12-Pack. Includes twelve (12) uKeg 128's (planned retail $149). Additional charge for shipping, we will contact you separately.

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    35 backers
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Funding period

- (54 days)