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Rumble Jar: One Gallon size (128oz), filter-only (no jar included)

Rumble Jar: One Gallon size (128oz), filter-only (no jar included)

Regular price $24.99
Regular price $29.99 Sale price $24.99
Sale Sold out

Our biggest filter is here! Now you can brew a full gallon's worth of cold brew all at once. This filter is perfect for anyone looking to brew larger batches for a family or a group. It's also great for anyone who'd prefer to just brew a single large batch that they'll store in the fridge and drink throughout the week. The filter is compatible with the leading style of one-gallon glass brewing jars (not included), so please see our Compatibility Guide to make sure you're using the right one.

The brewing instructions couldn't be simpler. Just take your favorite coffee beans, grind them coarsely, add tap water and give it a rumble. Total prep time takes less than a minute, and by the morning you'll have delicious cold brew coffee ready to drink.

To see what makes this filter ideal for cold brew, check out this product teardown.

Includes: 
+ 18/8 Stainless Steel Cold Brew Filter, designed to fit the leading one gallon (128oz) glass brew jars*
+ Food-Grade Silicone Cap
+ Cotton Filter Bag (optional 2nd stage filter)
*Jar not included. See which jars are compatible 

Need a smaller size? Rumble Jar filters also come in quart and half-gallon sizes. See the full collection here

Need coarse ground coffee? Get 25% off a bag of our Coarse Ground Coffee when purchased with any other item.  

Contents

+ 18/8 Stainless Steel Cold Brew Filter, designed to fit the leading one gallon (128oz) glass brew jars*
+ Food-Grade Silicone Cap
+ Cotton Filter Bag (optional 2nd stage filter)
*Jar not included.

Detailed Features

Both Rumble Jar and Rumble Go have similar features that made them both crowd favorites.

Rumble Jar's industry-leading cold brew coffee filter design

The Filter. We engineered an entirely new filter designed specifically for the cold-brewing process. This is not one of those run-of-the-mill cheap mesh filters originally designed to brew hot coffee and then just repurposed for cold brew. Instead, our filters are etched out of a single sheet of 18/8 (Type 304) stainless steel, which makes them lightweight but shockingly sturdy. They're designed to last for years and are a total cinch to clean. Most importantly, the filter's 200-micron hole size allows water to circulate at an ideal rate for steeping coffee that has been ground coarsely, which is the same way the pros make cold brew. This filter is also flexible enough to allow a person to brew with medium-size grounds (commonly found in pre-ground packaged coffee). This filter contains no plastic parts, and it does not require disposable paper filters or reusable felt ones that are a pain to wash and end up costing you money to replace later. Those paper/felt filters just soak up the flavorful oils that are the hallmarks of good coffee anyway, so you won't miss them.  

 

Rumble Jar's innovative cap design allows you to make cold brew coffee more easily

The cap. A patent-pending, FDA-approved, food-grade silicone cap allows the filter to be fully contained inside a jar or water bottle, which keeps it out of the way so it doesn't interfere with the jar/bottle's original seal. As a result, your container stays leakproof and your coffee brews in an airtight chamber. An airtight chamber prevents oxidation (aka the "coffee killer"), so the bottom line is you'll end up drinking better-tasting coffee. The cap's shock-absorbing design also protects the metal filter from dents and rattles, helping ensure it can last for years.  

 

Rumble Go's base adjusts by 1.5" to fit a variety of water bottles

The Extendable Base (*found on the Rumble Go only*). The Rumble Go's silicone base features 11 different height adjustments that extend the filter by up to 1.5" so it can fit a wide range of popular 16-32oz wide-mouth bottles. The universal design means you can keep using your favorite water bottle or repurpose an old one that may have fallen out of use.  

 

Rumble Jar is designed to work in tandem with the durable but easily replaceable Mason jar

The Mason Jar (*for the Rumble Jar quart and half-gallon filters only*). An ideal 3-in-1 brewing + drinking + storage vessel with a legendary seal. Our patent-pending design ensures that this legendary seal stays intact as originally designed, allowing your coffee to stay fresher since the jar remains airtight and resists oxidation. Of course, a good seal also keeps it from leaking all over the place. And if an accident happens and you ending up breaking your jar, the good news is how easy and cheap it is to replace a Mason jar. No need to shell out for an overpriced, proprietary piece of glass.

Want to see it in action? Watch our 92-second video 

Ready to shop? Click here

Discounts

Some ongoing promotions to help you save:

  • Free U.S. Shipping. All orders of $34+ are eligible.
  • Buy 1, Get 1 for 25% Off + Free Shipping. Discount is automatically applied to your cart as soon as 2+ items are added (i.e. no promo code needed). If your adjusted total comes to $34+, you get Free U.S. Shipping too!
  • Save 20% with a 3-pack of coffee + Free Shipping: Coarse Ground Coffee 3-pack (note: this discount does not combine with BOGO discount above) 
  • Bulk orders of 10+ items are 25% off. Just email us with the details of your bulk order, and we'll send over an invoice with a 25% discount applied to the full order. Rumble Jar | Contact Us 
  • Just buying one item? Our email subscribers get some exclusive discounts, including a discount on the first order. Sign up here to save on your initial order: Rumble Jar email signup 

 

Shipping & Returns

Orders of $34+ qualify for Free U.S. Shipping. In addition to Free Shipping, customers automatically receive a 25% discount on any second item in their cart (see discount details).

Orders under $34 qualify for flat-rate shipping of $3 to anywhere in the U.S.

For additional shipping and returns info, please see our Shipping & Returns page

Instructions & FAQ

Brewing Instructions: Step-by-step instructions (with gifs!) can be found on our Brewing Instructions page, and we have a bunch of specific tips and tricks in our FAQs.

Cleaning Instructions: Our simple design ensures an ultra-quick cleanup. All of our Mason jars, stainless steel filters and silicone caps/bases are dishwasher safe. The only components that require hand-washing are Rumble Jar's reusable cotton filter bag as well as Rumble Go's optional insulated bottle.

More questions? We have a pretty thorough FAQ section. Otherwise you can always email us.

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  • Free Shipping on orders of $34+

    U.S. Shipping is free on all orders of $34+, so why not get one for your home and another for the road?

    Shipping Info

  • Automatic 25% Discount on a second item

    Order 2+ items and receive a Buy One, Get One discount for 25% off your second item. Exclusions apply.

    Discount info

Prep time: 1 minute. Clean-up: 30 seconds.

  • Best $20 ever spent. Makes making cold brew cake.
  • Thank you for making this!!! Seriously the best cup of coffee, cold brew, I have EVER had!!!!!
  • Possibly the easiest method to make this magical thing called cold brew.
  • By far the best, fastest and cleanest way to brew your cold brew.
  • Just made my first batch. Holy whoa! This is all I need. Forever! So many options for flavors and strengths, so easy, love it!
  • I love my rumble jar. Amazing coffee. You can taste all the subtle nuances of the coffee. Just amazing.

Customer Reviews

Based on 8 reviews
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(6)
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H
Heather Keen
Works Perfectly (If you follow the directions!)

I'm a big fan of cold brew, and an even bigger fan of trying to save money, so the Rumble Jar Gallon size filter was exactly what I was looking for to make delicious cold brew coffee. First time I used it I didn't follow the directions and put grounds in the filter and then put it into the gallon mason jar I have for cold brew and was confused why on the bottom half of the jar was brewing and the top was still water. Finally realized you have to pour the water into the filter, so after some troubleshooting I was able to make a delicious gallon of cold brew coffee. Can't wait to use this all summer and into the fall, until it gets too cold!

R
Renee G
Convenience 101

Love how easy it is to make coffee for the entire week with the 128 oz size rumble jar!

M
Matt Olson
Not as advertised

It filters coffee. But, but it doesn't prevent the majority of store bought ground, and honestly... even if it was coarse ground, you'd still have to take extra steps to filter this with sone sort of paper filter. This is great if you don't mind being a little unhealthy by drinking coffee grounds. And yes it is less healthy, do some research. Oh well, back to paper bag filters I suppose.

B
Belinda R
Wonderful product

I love my rumble jars. I bought the smaller one to use on a cross-country road trip and then bought the larger one because I liked the small one so much. Easy to use, makes great coffee. Both purchases arrived quickly and in perfect condition.

C
Catherine

Simple system to make my favorite morning beverage. I actually use a half gallon jar (which seems to be what is pictured). Like it so much I'm gifting one to my cold brew loving niece!

Meet our next-gen cold brew filter

To build a better cold brew filter, we needed to re-think the tiniest details. It might look simple, but it's packed full of smart features. Come see what makes it a better cold brew filter.

Rumble Jar sturdy stainless steel filter for making cold brew coffee in a Mason jar
Rumble Jar's stainless steel construction is far more durable than typical mesh filters
Rumble Jar's silicone cap in orangey-red