--- product_id: 258383285 title: "(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S..." brand: "rumble jar" price: "574 kr" currency: DKK in_stock: true reviews_count: 5 category: "Rumble Jar" url: https://www.desertcart.dk/products/258383285-32oz-filter-only-w-dark-black-cap-rumble-jar-next store_origin: DK region: Denmark --- # dishwasher safe & BPA free 200 micron precision filter airtight Mason jar seal (32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... **Brand:** rumble jar **Price:** 574 kr **Availability:** ✅ In Stock ## Summary > ☕️ Rumble your way to fresher, stronger cold brew—because your coffee deserves an upgrade. ## Quick Answers - **What is this?** (32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... by rumble jar - **How much does it cost?** 574 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/258383285-32oz-filter-only-w-dark-black-cap-rumble-jar-next) ## Best For - rumble jar enthusiasts ## Why This Product - Trusted rumble jar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Leakproof Airtight Seal:** Nestled fully inside your Mason jar, the patented design preserves freshness and prevents spills—coffee stays fresher, longer. - • **Barista-Grade Extraction:** 200 micron stainless steel filter engineered for optimal cold brew with coarse grounds—taste the professional difference. - • **Compact & Fridge-Friendly:** Fits standard 1-quart wide-mouth Mason jars—brew cold, store cold, and enjoy fresh coffee anytime without bulky equipment. - • **Effortless Brewing Ritual:** Prep in under a minute—just add grounds, water, and rumble. Wake up to smooth, rich cold brew without the café price tag. - • **Durable & Sustainable Build:** Dent-resistant 18/8 stainless steel paired with food-grade silicone cap—goodbye flimsy filters, hello eco-friendly longevity. ## Overview The Rumble Jar 32oz Filter with Dark Black cap is a next-gen cold brew coffee filter designed specifically for 1-quart Mason jars. Featuring a patent-pending 200 micron 18/8 stainless steel filter and food-grade silicone cap, it ensures optimal extraction with coarse grounds while maintaining an airtight, leakproof seal. Dishwasher safe and BPA free, it simplifies professional-quality cold brew preparation and cleanup, making it the perfect upgrade for cold brew enthusiasts seeking freshness, durability, and convenience. ## Description Fresh off of an impressive Kickstarter debut, Rumble Jar is the next generation of cold brew coffee makers designed for Mason jars, and it will have you making barista-quality cold brew coffee right at home instead of overpaying in stores. This cold brew kit contains a patent-pending filter that was engineered by coffee experts to work specifically for cold brew, and then retrofitted to work in tandem with the classic, easily replaceable and highly durable Mason jar. Rumble Jar is all the equipment you need to make barista-quality cold brew coffee right at home. Just add coffee and water and give it a rumble. Prep time takes less than one minute, and by the morning you'll have professional-quality cold brew coffee ready to drink. The metal filter is made of dent-resistant 18/8 stainless steel. Say goodbye to those flimsy mesh filters you find everywhere, and say hello to this surprisingly sturdy upgrade. 200 micron holes are the ideal diameter for cold brew made with coarse grounds. Plus, the filter includes two notches to help guide you in brewing either normal strength or concentrate strength cold brew. The cap is made of food grade silicone, and it keeps grounds inside the filter, keeping them totally sealed away from your coffee. Choose from 2 cap colors: Dark Black or Orangey-Red. The filter is designed to be fully-nested inside the Mason jar so that nothing interferes with that time-tested Mason jar seal. The result is that your coffee stays airtight and the jar stays leakproof. Oh, and clean-up? Never been easier. That's because we eliminated all the unnecessary equipment to help make cleanup a cinch. BPA free. Food grade silicone. Dishwasher safe. Designed and assembled in USA. Filter + cap made in Taiwan. 100% cotton second-stage filter-bag made in China. Just shake your way to cold brew coffee. Review: Love this thing so much. I can make coffee so much quicker now and with less thought. I previously used the OXO cold brew maker and was finding after about a year that it wouldn't drain well, even using a coarse grind. Also, the plastic container holding the brew had gotten scratched pretty good on the bottom where I would scrape it to force it to drain. While the plastic was noted to be BPA-free, it still weirded me out what else could be leaching into my coffee from those scratches. It was just so frustrating. The Rumble Jar is consistent and there's no fuss about draining anymore. Being stainless steel, there's no worry about it leaching any chemicals, unlike the scratches plastic. Plus, since it fits in a mason jar, I can brew it in my fridge now. The OXO brewer was too large for my fridge, so I would brew on the countertop, making my first couple cups warm, which I didn't like. Now it's cold from the first cup using the RJ. Really easy to clean. I just dump the used grinds into my compost bucket and wash the rest out. It would be even easier to clean if the bottom was detachable, though. You can't really make concentrate with it like I could with the OXO since the water needs to cover the column. So, I brew it with grinds up to the second notch and don't dilute it. Filled with water to the top of the 64oz mason jar to brew, I get about 49-50oz of net coffee. It's the perfect amount for 3 days for me, personally. I wish the silicone lid fit on the top of it a little snugger. I have noticed once or twice that the lid had just about come off while brewing when I went to drain it. It has just a small lip that fits over the top. Be gentle with your inversions and fill the mason jar up to the very top with water to prevent that. I can make the coffee and drain it with this, both quickly and consistently. Quick and easy cleanup. Wish I had searched for something like this sooner. Review: Being recommended this product from a colleague I was uncertain of how successful it would have been, alas I pleased to report i LOVE the product and would be again as a gift for my coffee loving friends. ## Features - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0854CW9ZJ | | Best Sellers Rank | #274,975 in Kitchen ( See Top 100 in Kitchen ) #137 in Cold Brew Coffee Makers | | Brand | Rumble Jar | | Capacity | 1 Quarts | | Color | 32oz Filter only w/ Dark Black cap | | Compatible Models | Coffee Maker | | Customer Reviews | 4.6 4.6 out of 5 stars (1,163) | | Date First Available | 4 March 2020 | | Item Weight | 139 g | | Material | Cotton, Silicone, Stainless Steel | | Product Dimensions | 7.62 x 7.62 x 15.88 cm; 139 g | ## Product Details - **Brand:** Rumble Jar - **Material:** Cotton, Silicone, Stainless Steel - **Number of pieces:** 4 - **Package Size Name:** 32oz - **Shape:** Basket ## Images ![(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... - Image 1](https://m.media-amazon.com/images/I/91W3mE3BhVL.jpg) ![(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... - Image 2](https://m.media-amazon.com/images/I/71zAw0iIeDL.jpg) ![(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... - Image 3](https://m.media-amazon.com/images/I/910NAUVUvNL.jpg) ![(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... - Image 4](https://m.media-amazon.com/images/I/91Q3QbIaeYL.jpg) ![(32oz Filter only w/ Dark Black cap) - Rumble Jar - Next-Gen Cold Brew Coffee Maker for 950ml Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Includes Cotton Filter S... - Image 5](https://m.media-amazon.com/images/I/61HeQ4OdwsL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***R on 17 November 2023* Love this thing so much. I can make coffee so much quicker now and with less thought. I previously used the OXO cold brew maker and was finding after about a year that it wouldn't drain well, even using a coarse grind. Also, the plastic container holding the brew had gotten scratched pretty good on the bottom where I would scrape it to force it to drain. While the plastic was noted to be BPA-free, it still weirded me out what else could be leaching into my coffee from those scratches. It was just so frustrating. The Rumble Jar is consistent and there's no fuss about draining anymore. Being stainless steel, there's no worry about it leaching any chemicals, unlike the scratches plastic. Plus, since it fits in a mason jar, I can brew it in my fridge now. The OXO brewer was too large for my fridge, so I would brew on the countertop, making my first couple cups warm, which I didn't like. Now it's cold from the first cup using the RJ. Really easy to clean. I just dump the used grinds into my compost bucket and wash the rest out. It would be even easier to clean if the bottom was detachable, though. You can't really make concentrate with it like I could with the OXO since the water needs to cover the column. So, I brew it with grinds up to the second notch and don't dilute it. Filled with water to the top of the 64oz mason jar to brew, I get about 49-50oz of net coffee. It's the perfect amount for 3 days for me, personally. I wish the silicone lid fit on the top of it a little snugger. I have noticed once or twice that the lid had just about come off while brewing when I went to drain it. It has just a small lip that fits over the top. Be gentle with your inversions and fill the mason jar up to the very top with water to prevent that. I can make the coffee and drain it with this, both quickly and consistently. Quick and easy cleanup. Wish I had searched for something like this sooner. ### ⭐⭐⭐⭐⭐ Review *by N***E on 4 January 2021* Being recommended this product from a colleague I was uncertain of how successful it would have been, alas I pleased to report i LOVE the product and would be again as a gift for my coffee loving friends. ### ⭐⭐⭐⭐⭐ Review *by G***N on 6 August 2021* The rumble jar is so quick and easy to use it should be used by anyone making cold brew coffee. The clean up is simple. It's one of the best products I have bought. I have had no need to use the cloth filter bag as the cold brew from the filter is perfect. Fill course grind coffee into the filter.( I like mine strong so I fill up to the 2nd mark and place in kilner jar. ) Fill with bottled spring water then brew for 24hrs in the fridge or 12hrs on the counter. Easy as that. Buy it and you will not be disappointed. ## Frequently Bought Together - Rumble Jar - Next-Gen Cold Brew Coffee Maker for Mason Jars - 200 Micron Filter Is Ideal for Coarse Grounds & Stronger Coffee - Standalone Filter (no Mason Jar included) - Ball Wide Mouth Glass Mason Jars with Lids and Bands, Used for Canning, Pickling, Juice, Jam, Jelly, Quart Size 32 Ounce (Pack of 2) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/258383285-32oz-filter-only-w-dark-black-cap-rumble-jar-next](https://www.desertcart.dk/products/258383285-32oz-filter-only-w-dark-black-cap-rumble-jar-next) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-27*