Rumble Jar | A Better 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: For the home

Rumble Go: for the road

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

Rumble Jar is the next-generation cold brew coffee kit that lets you make barista-quality cold brew right in your own kitchen. The secret is our stainless steel filter, which we built to the precise specifications of cold brew coffee experts and then re-engineered to work in tandem with standard quart and half-gallon Mason jars. Get an up-close look at the components

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Rumble Go: The Universal, Portable Cold Brew Filter

Rumble Go™ builds upon the legacy of the original Rumble Jar by re-imagining the filter in a more portable and adaptable form. Its universal, height-adjustable design transforms your wide-mouth water bottle into a cold brew coffee maker that can be taken anywhere. This could be the world’s simplest way to make great cold brew away from home. Check it out here

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New! Limited Edition 34oz Bottle + Rumble Go

By pairing our portable Rumble Go filter with its own limited edition 34oz bottle, we've created a complete package that's about as travel-friendly as a coffee maker gets. Rumble Go + Bottle

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How easy is the process?

You can prep a batch in under 1 minute. Then just let it sit overnight, and by morning you'll have cold brew coffee that tastes like the pros made it.

instructions

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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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

See how Rumble Jar works, in 92 seconds

"Phenomenal Filter"

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

By far the best, fastest and cleanest way to brew your cold brew.

Pounder's Cooking

"Best Kickstarter project I ever backed."

Oscar (backer of 100+ projects)

"Tuck into the best coffee ever"

Kenny Ng

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.

Details