The Simplest Cold Brew Filter
We set out to make the world's simplest cold brew system. Introducing Rumble Jar. We over-engineered every last detail of our filter system so that your morning routine would be as simple, quick and affordable as possible. And then we designed the whole thing to fit snugly inside of the time-tested mason jar. Beautiful equipment. Simple brewing. Delicious cold brew coffee.
Great tasting cold brew
super easy to prepare
High quality components
in a beautiful package
I prefer my coffee to be super bitter and acidic.
I'm looking to spend a bunch of money on equipment I don't need so that I can clean it later.
We launched Rumble Jar on Kickstarter in November 2017. The reception was truly unreal. Our backers are the best! If you missed that campaign but have interest in pre-ordering your own Rumble Jar, click the button below to head to our pre-order site.Pre-order