Product Description
Make cold brew coffee like a pro
The prep work takes about 1 minute. Then just let it sit overnight, and by morning you’ll have cold brew coffee that tastes like the pros made it.
Filter: Hardened Stainless Steel. Not a mesh screen.
Say goodbye to those mesh screen filters. This stainless steel filter was built specifically for cold brew. The 200-micron holes resist clogging and allow water to circulate more freely, resulting in a strong cup of coffee. Plus, the filter’s walls are sturdy and dent-resistant, so they won’t tear or fray like those mesh screens.
Food Grade Silicone Cap
The unique cap design keeps grounds sealed inside the filter, so you don’t risk them spilling into your coffee. It also works as a shock absorber to prevent rattling and protect the metal filter. The cap is made of food-grade silicone and is BPA free.
Compatible with Wide-Mouth Mason Jars
The do-it-all Mason jar serves 3 different purposes: coffee brewer + coffee cup + coffee storage. The Rumble Jar filter is recessed inside the Mason jar (instead of being perched on top), and that allows the Mason jar’s legendary seal to work its magic and keep your coffee truly leakproof and airtight. And if you happen to break a jar, the good news is they’re easy to find and cheap to replace. No more fiddling around with fragile proprietary glass containers that might cost a fortune or be impossible to replace.
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.6 out of 5 stars 1,347
4.6 out of 5 stars 1,347
4.6 out of 5 stars 1,347
4.3 out of 5 stars 250
Price
$29.00$29.00 $19.99$19.99 $21.99$21.99
— no data
Compatible container
Quart size (32oz) wide mouth Mason jar Quart size (32oz) wide mouth Mason jar Half gallon size (64oz) wide mouth Mason jar 16-34oz wide mouth portable bottles
Best use
At-home At-home At-home Out-of-home
200 micron filter built specifically for cold brewing applications
✓
✓
✓
✓
Dishwasher safe
✓
✓
✓
✓
Works for both coffee and tea
✓
✓
✓
✓
Includes cotton secondary filter
✓
✓
✓
no data
Height-adjustable filter
no data
no data
no data
✓
Disposable parts required
None None None None
Mason jar included
✓
no data
no data
no data
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. It’s a radical improvement to those first-generation brewers with fine mesh screen filters, which are more suited to brewing hot coffee with finer grounds. You’ll taste the difference.
KEEPS COFFEE FRESHER THAN THE COMPETITION: Oxidation is the enemy of fresh coffee, so the key is to keep air out. Unlike traditional sit-on-top mesh filters, our next-generation filter rests fully inside the Mason jar, allowing the Mason jar’s lid to maintain its famous airtight seal. This keeps your cold brew fresher. The intact seal also means the jar stays leakproof, so it’s truly portable and means an end to coffee leaking coffee all over your hands, kitchen and clothes.
NOVEL DESIGN BELOVED BY ITS KICKSTARTER BACKERS: The patent-pending capped-filter design features an ultra-sturdy, dent-resistant 18/8 stainless steel filter, with your choice of color for the food-grade silicone cap. The cap keeps grounds sealed inside the filter, while also working as a shock absorber that prevents rattling and protects the filter. Now you can say goodbye to those flimsy mesh filters that can produce weaker cold brew and easily fray, rip and get clogged up.
BREWING PROCESS IS SIMPLER THAN EVER: Professional-quality cold brew takes less than a minute to prepare at home. After adding coffee grounds and water, just tighten the lid and rotate the jar horizontally/sideways 2 or 3 times. This “rumble” step activates the brewing process. Then let it sit overnight and your cold brew will be ready in the morning, tasting like a barista made it. Cleanup is even faster than the prep.
COMPATIBLE WITH STANDARD 2-QUART/64OZ MASON JARS (NOT INCLUDED): Product includes a stainless steel filter with food-grade silicone cap and a 100% cotton filter-bag that can be used as an optional second stage of filtration if you brew with fine grounds (remember: coarse grounds are best for cold brew). The stated 2-quart capacity represents the volume of the Mason jar, not the volume of the filter. BPA free. Dishwasher safe.
Customers say
Customers find the cold brew maker easy to set up in advance and appreciate that it’s a huge time saver. The product fits perfectly in 64 oz Mason jars and takes up minimal cupboard space, while being easy to load and clean. Moreover, the coffee tastes incredible with less bitterness, and customers consider it a worthwhile purchase. The build quality receives mixed feedback, with some finding it well-made while others describe it as flimsy.
There are no reviews yet.