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☕ rumble jar 32oz mason jar cold brew coffee maker - next-gen with 200 micron filter - perfect for coarse grounds & stronger coffee - includes cotton filter sock (32oz filter-only w/ orangey-red cap) logo

☕ Rumble Jar 32oz Mason Jar Cold Brew Coffee Maker - Next-Gen with 200 Micron Filter - Perfect for Coarse Grounds & Stronger Coffee - Includes Cotton Filter Sock (32oz Filter-only w/ Orangey-Red cap) Review

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Average

Revainrating 4 out of 5  
Rating 
3.8
☕️ Coffee, Tea & Espresso, 🍽️ Kitchen & Dining

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Description of ☕ Rumble Jar 32oz Mason Jar Cold Brew Coffee Maker - Next-Gen with 200 Micron Filter - Perfect for Coarse Grounds & Stronger Coffee - Includes Cotton Filter Sock (32oz Filter-only w/ Orangey-Red cap)

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 ours is 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 give the jar a quick shake. That "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 WIDE-MOUTH 1-QUART MASON JARS (NOT INCLUDED): Product includes metal filter with silicone cap and a 100% cotton filter-bag that can be used as an optional second stage of filtration if you have to use fine grounds (remember: it’s best to use coarse grounds for top-quality cold brew). Food-grade silicone cap comes in 2 colors: Dark Black, Orangey-Red. BPA free. Dishwasher safe.
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Reviews

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Type of review

Revainrating 5 out of 5

LOVE Rumble Jar!

Rumble Jar has pushed our daily coffee routine to the limit! So easy to use and clean (I hand wash as it only takes a few seconds). Love that he uses a mason jar. I use mason jar reusable plastic lids so I don't have to worry about the metal lids that come with mason jars rusting. I've used finer ground coffee and it really wasn't a problem. There is a small amount of sludge in the glass after brewing, but I really like it! If you measure your coffee grounds with a scale, 60-66 grams will work…

Pros
  • Worth the money
Cons
  • It's ok

Revainrating 4 out of 5

Decent drink with excitement, seems a little cheap

I bought this to make cold drink preparation a bit easier and not sure how I feel about it yet. I immediately noticed that the tube was made of very thin steel. This makes it feel pretty cheap and I have to be very careful with it. I've only used it once so far, but I'm not that thrilled with it. The mesh is so thin that the water doesn't seem to flow very freely and the brew doesn't turn as dark as with other methods, so I doubt if I'll get a good extraction now or not. I shook/"shaken" the…

Pros
  • Quick change
Cons
  • Almost never

Revainrating 5 out of 5

Great for cold brewing at home

04/09/2018 is my second attempt on my first review. I'm not entirely sure why my first review was tagged Revain, but that's it. I bought this to replace my expensive cold brew habit. Here in Boston, a store-bought cold drink costs about $5 a cup. The Rumble Jar was recommended by a friend who has tried several of these devices. I've been using it for a few weeks and would recommend it to anyone who enjoys a good cup of cold drink. It's very easy to use. See my photo for reference. 05/18/2021 --

Pros
  • Great design
Cons
  • Crumpled packaging

Revainrating 2 out of 5

Disappointing - Kitchen & Dining

Was very happy to try this. I currently use a french press to make a cold drink, but it's such a hassle to take all the parts apart to clean after each use. I really wanted something simple and easy to clean. But despite the fact that this thing is very simple and easy to clean, that's all I can say about it. It hasn't even been 5 hours and all I see is sediment floating in the jar (I even made sure it's very big). I will not be using the supplied gauze bag for further filtration, this is even…

Pros
  • Done
Cons
  • Some issues

Revainrating 2 out of 5

It works but not a great design. The best options are out there.

Although this product ends up working as advertised, there are a number of downsides that are far from perfect. First, the silicone cap doesn't stabilize the metal filter well while it's in the jar. The lid also sits too high, forcing you to push it further down than I see fit when I want to screw the stein's lid on. When the lid of the stein is sealed with a filter inside, it never seems to sit symmetrically. This can cause it to wobble if you shake it a little. Finally, the filter itself has…

Pros
  • New to my collection
Cons
  • ---

Revainrating 4 out of 5

No specs for some reason

The filter is almost a perfect cylinder (except for the edge band and the base that folds over the body). The diameter of the filter top together with the edge band is 2.5. "Bottom diameter 2.25" Height 8 inches The filter looks like it will hold 2 liters or two liters of cold drink. There are fairly small holes punched in the filter housing. I expect some sediment to remain, which is fine as I usually pass the brew through paper filters afterwards. Use fewer paper filters per batch of coffee…

Pros
  • Large selection
Cons
  • Nothing here

Revainrating 5 out of 5

Love it - used it to break my wife's DD iced coffee habit!

Tired of driving to DD daily to satisfy my wife's iced coffee habit. Decided to make cold coffee and drinks here at home. What a great solution! The Rumble Jar is very easy to use and makes great tasting iced coffee from every type of bean I've ever tasted. After brewing, I keep the glasses in the fridge and when I brew coffee for them, the pre-chilled coffee doesn't melt all the ice in the cup or dilute the drink too much. Lie - when we get something from DD on a walk, she always tells me it's

Pros
  • Full Set
Cons
  • Empty

Revainrating 3 out of 5

Worked well not sure if it's worth the premium price

$29 premium price for a cylindrical coffee filter that is a bit different in design to the mesh filters sold here on Amazon especially if you there are already many inexpensive spherical glasses with a wide opening. I was hoping that with this new design I wouldn't have to filter out coffee grounds, but that's not the case. After 23 hours of brewing, there was still dregs and ground coffee at the bottom of the can (the coffee was ground at the grocery store). If I still need to filter my…

Pros
  • GOLS certified
Cons
  • Only available in black