A new coffee kit can make cold brew on the go in less than 4 hours

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Clinton Nguyen/Business Insider

Cold brew – the less acidic and more slowly steeped sibling of iced coffee – has become widely popular over the past few years. Many coffee chains, including Starbucks and even Dunkin’ Donuts, have started serving their own cold brew, even going so far as to inject the brew with nitrogen for an extra kick.

Behind every $3-4 cup, there’s a long process that usually involves soaking grounds in lukewarm or cold water for 10 to 16 hours. That brewing process can be done by placing a nut bag in a pitcher or using a big toddy system, but neither of those are particularly portable.

If you’re looking for a cold brew maker that you can keep in an office kitchen or shared fridge (without feeling obstructive), a newly released brewing device called the Dripo takes up the same space as a tall Thermos.

The three-part cold brew coffee maker was released in July, and measures around 16 inches tall. It costs a reasonable $29.95 on Amazon. Here’s how it works.


Instead of submerging the grounds in water as most cold brew kits do, the Dripo works by slowly dripping water on top of the grounds. This saturates the grounds so the coffee drains drop by drop into the cup below. It’s a technique that’s been used for a while, though rarely on such a small scale.

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Clinton Nguyen/Business Insider

The Dripo comes in three parts. You fill the reservoir on top with lukewarm or cold water. Coffee grounds go in the middle chamber, which holds a stainless steel filter, and the mug on the bottom catches the brewed coffee.

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Clinton Nguyen/Business Insider

The Dripo’s coffee chamber has markings to help you measure the right amount of grounds. Dripo recommends using 30 grams.

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Clinton Nguyen/Business Insider

The instructions also recommend using medium-ground coffee. When I gave it a try, however, I used more coarse grounds, like those you’d put in a French press.

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Clinton Nguyen/Business Insider

Once I put the grounds in, I placed a paper filter on top of them, since that helps distribute the water more evenly through them. The Dripo comes with a set of filters.

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Clinton Nguyen/Business Insider

After that, I filled in the top reservoir with ice water and screwed it in. The Dripo advertises a 2.5-hour brew, but it actually took about 4 hours for the coffee to to fully brew, since I filled the water to the top, and the drip hole kept blocking up.

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Clinton Nguyen/Business Insider

The coffee that eventually brewed, however, was smooth and flavorful. It still took a long time to get a single cup, so coffee lovers might be better off getting a full cold brewing kit and letting it sit overnight. But if you’re constantly on the go, the Dripo is an unobtrusive and simple option.

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Clinton Nguyen/Business Insider