Rumble Go: Portable Cold Brew Coffee Maker (filter only)

Sale price Price $19.99 Regular price Unit price  per 


Rumble Go could be the world's most portable coffee maker. Just drop the Rumble Go filter into a compatible water bottle, and it's instantly transformed into a portable cold brew coffee maker. The brewing process couldn't be easier: just add coffee grounds and water and give it a "rumble", and your coffee is now brewing! See why it was recommended by Outside Magazine.

Rumble Go's flexible design allows it to extend and fit a wide variety of popular wide mouth water bottlesThe universal, extendable filter is compatible with a range of popular 16-32oz WIDE-mouth water bottles, such as Nalgene®, Hydro Flask®, Klean Kanteen® and CamelBak®. See a list of known compatible bottles (plus instructions for measuring any bottles not listed). 

Don't have a Compatible Bottle? Rumble Go is also available with a bottle.

Brew coffee while you travel. Cold brew might be the easiest way to make coffee away from home. See why

+ 18/8 Stainless Steel Filter, Specifically Designed for Cold Brew 
+ Food-Grade Silicone Cap & Extendable Base (available in 2 colors)

To see what makes our line of filters ideal for cold brew, check out this product teardown.

Free Shipping on US orders of $34+. More info 

Discounts Available: Order any two items and you’ll automatically receive a Buy One, Get One for 25% off discount. Discount info


Rumble Go builds upon the legacy of the original Rumble Jar by adapting our award-winning filters so they fit into containers that are a little more portable than a Mason jar. Rumble Jar is made for your home, while Rumble Go is made for the road.

Now it's simple to make professional-grade cold brew coffee anywhere you go, using a bottle you likely already own. Just take some coarsely-ground coffee beans, add some lukewarm water, and give it a quick "rumble". Total prep time takes less than a minute, and by the morning you'll have delicious cold brew coffee. See how easy it is to brew a batch

Stainless steel filter. Built out of dent-resistant 18/8 stainless steel, this surprisingly sturdy filter will have you saying goodbye to those flimsy mesh filters, those plastic parts, or those disposable paper filters, since all that stuff was designed for brewing hot coffee anyway. Experts agree that coarse grounds make the best cold brew, and 200 microns is the ideal hole size for perfectly filtering coarse ground coffee beans. A bigger hole size would yield too much sediment, while a smaller hole size would yield weak-tasting coffee. 200 microns is "just right". Our filter also features three notches on the side. Those notches help you figure out the right amount of grounds to use, since precise measurements become impractical when you're away from home. see it up close

Universal, extendable base and cap. Designed using BPA-free, FDA-approved food grade silicone, the base features 11 different height adjustments that extend the filter by up to 1.5" so it can fit into a wide range of popular 16-32oz wide-mouth bottles. The base and the cap work together to keep the grounds secured inside the filter while also acting as shock-absorbers to prevent rattling. The cap is designed to allow the filter to nest fully inside a bottle, so the filter never interferes with your bottle's airtight, leakproof seal. Choose from 2 colors: Dark Black and Orangey-Red. see it up close


Compatible 16-32oz wide-mouth bottles: Nalgene®, Hydro Flask®, Klean Kanteen®, CamelBak® bottles are all compatible, plus a bunch of others. See our compatible bottle guide for more, including how to measure your own bottle.

Looking for reviews? Check out this gem by Outside Magazine

Need detailed brewing instructions or more info about Rumble Go? We have a dedicated Rumble Go help page 

Shipping question? Click for shipping info

Cleaning? Never been easier, since our simple design ensures an ultra-quick cleanup. The filter, cap and base are all dishwasher safe.  

Have a different question? We have a pretty thorough FAQ section. Otherwise you can always email us.

Nalgene®, Hydro Flask®, Klean Kanteen®, CamelBak® are trademarks of their respective owners, and we are not endorsed by, affiliated with or associated with any of them. We just want you to enjoy their products even more.