Rumble Jar Portable Cold Brew Coffee Filter
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 that you can take anywhere.
The brewing process couldn't be easier: just add coffee grounds and water and give it a "rumble", and your coffee is now brewing!
The 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®.
Includes: 18/8 stainless steel filter, specifically designed for cold brew, food-grade silicone cap & extendable base.