Rumble Jar | Cold Brew Coffee Made Simple
by Rumble Jar
We're twin brothers who like cold brew coffee. So we created the Rumble Jar, and 1,259 beautiful Kickstarter souls joined us for that adventure. And then Kickstarter staff named it as one of their 26 favorite projects of the year (click the medium.com link). Now we're on to making cold brew more portable with the Rumble Go!
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