A Better Cold Brew Coffee Maker for Your Home
Rumble Jar is the next-generation cold brew coffee kit that will have you making barista-quality cold brew in your own kitchen. The secret is the stainless steel filter, which was built to the precise specifications of cold brew coffee experts and then re-engineered to work in tandem with quart and half-gallon Mason jars. So now you can enjoy professional-grade cold brew coffee right at home, and it takes less than a minute to prepare. Look at our components up-close
How easy is it?
A simple 4-step process gets the brewing started in under 1 minute. Then just let the jar sit overnight, and by morning you'll have cold brew coffee that tastes like the pros made it.
See how Rumble Jar works, in 92 seconds
Available here soon: Rumble Go
A truly portable cold brew maker
Rumble Go™ features a universal, height-adjustable filter that transforms a water bottle into a portable cold brew coffee maker. It could be the world’s simplest way to make great cold brew outside your house. And guess what? There's a good chance you already own a compatible bottle. Check it out here
Outstanding Reviews
We launched Rumble Jar on Kickstarter in late 2017 and have been blown away by the reception ever since. Heck, it even earned us a Kickstarter Project of the Year award! Just have a look at our reviews.
Reviews