A BETTER FILTER THAT MAKES STRONGER COLD BREW COFFEE: Cold brew experts designed this filter to make professional-quality cold brew in a Mason jar. Our 18/8 stainless steel filter features 200 micron holes, the ideal size for allowing water to circulate and optimal extraction to occur with coarse-ground coffee.


Kit includes:

32 oz. Mason jar
Professional-grade filter
Optional second-stage cotton fiber

Rumble Jar Cold Brew Coffee Maker