Rumble Jar cold brew coffee maker

A better cold brew coffee maker

Make cold brew like a pro

We design equipment that keeps the cold-brewing process as simple as possible (1 minute prep time). Whether you're at home or on the road, you can make some of the best coffee you've tasted. 

Rumble Jar: A Better Cold Brew Coffee Maker for Your Home

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Rumble Go: The Universal, Portable Cold Brew Filter

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New! Standalone filters now available

If you already have wide-mouth Mason jars and don't need our complete brewing kit, we now sell standalone filters.

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How easy is the process?

instructions

See how Rumble Jar works, in 92 seconds

Rumble Jar's stainless steel construction is far more durable than typical mesh filters

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
Seattle Coffee Gear

You can count on the high-quality filter to not leave behind any coffee grounds.

As a bonus, it makes for a great iced tea or infused water maker too.

Architectural Digest
Oscar (backer of 100+ projects)

Simple and smart.

To build a better cold brew filter, we needed to re-think the tiniest details. Our filters may look simple, but they're packed full of smart features. 

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