The World's Simplest Way to Make Cold Brew Coffee
We set out to make the world's simplest cold brew coffee system. Introducing Rumble Jar. We over-engineered every last detail of our filter 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.
We launched Rumble Jar on Kickstarter in November 2017. The reception was truly unreal! In case you missed that campaign but want to see what the early-adopters think about Rumble Jar, check it out below.Kickstarter
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.