{"product_id":"sibarist-b3-flat-specialty-coffee-filters-flat-bed","title":"Sibarist B3 Flat Specialty Coffee Filters for Flat Bed Brewers","description":"\u003cp class=\"product-lead\"\u003eThe Sibarist B3 Flat Specialty Coffee Filter is a 100% organic paper filter designed for flat bed drippers in the Kalita 185 style, developed in collaboration with 2021 World Brewers Cup Champion Matt Winton. The B3 paper technology combines structural rigidity with controlled low porosity to produce fast, even extractions with sweet, clean results. Filters are sold in packs of 25 sheets and arrive pre-creased for folding.\u003c\/p\u003e\n\n\u003ch2\u003eEven Extraction Across the Whole Coffee Bed\u003c\/h2\u003e\n\u003cp\u003eThe B3 Flat filter's shape is engineered to create a brewing bed that promotes high uniformity turbulence and gives water full access to the coffee bed. Because the filter maintains minimal contact with the dripper walls, the coffee bed sits evenly and water moves through it consistently rather than channeling around compressed edges. For brewers chasing repeatability, that even flow path is the difference between a cup that tastes the same every time and one that varies with small changes in technique.\u003c\/p\u003e\n\n\u003ch2\u003eFast Flow, Sweet Cup\u003c\/h2\u003e\n\u003cp\u003eB3 paper is rigid enough to hold its shape during the brew, which keeps the filter from collapsing against the dripper and slowing the draw-down. At the same time, the material's thickness and low porosity act as a fine filter barrier: fines and oils that would otherwise pass through a thinner sheet are held back, producing a cleaner, sweeter cup without sacrificing extraction speed. Most filters trade one quality for the other; the B3 paper's construction delivers both.\u003c\/p\u003e\n\n\u003ch2\u003eOrganic Materials, Barcelona Craftsmanship\u003c\/h2\u003e\n\u003cp\u003eB3 Filter Papers are 100% organic, and Sibarist packages them in organic, compostable materials. The filters are manufactured in Barcelona. Each pack of 25 arrives as a flat stack with pre-folded crease marks so no separate folding guide is needed.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCo-developed with a World Brewers Cup Champion:\u003c\/strong\u003e B3 paper technology created jointly by Sibarist and 2021 World Brewers Cup Champion Matt Winton.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat bed dripper fit:\u003c\/strong\u003e Shaped for flat bed drippers in the Kalita 185 style.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% organic paper:\u003c\/strong\u003e Filter paper is fully organic; packaging is organic and compostable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow porosity, high rigidity:\u003c\/strong\u003e Structural stiffness minimizes dripper contact; controlled porosity reduces bypass and retains fines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-creased for easy folding:\u003c\/strong\u003e Sheets arrive flat-stacked with indentation marks so setup requires no tools or templates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in Barcelona:\u003c\/strong\u003e Manufactured by Sibarist in Spain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFilter shape\u003c\/td\u003e\n      \u003ctd\u003eFlat (for flat bed drippers, Kalita 185 style)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePaper material\u003c\/td\u003e\n      \u003ctd\u003e100% organic\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSheet count per pack\u003c\/td\u003e\n      \u003ctd\u003e25\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePackaging material\u003c\/td\u003e\n      \u003ctd\u003eOrganic and compostable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOrigin\u003c\/td\u003e\n      \u003ctd\u003eBarcelona, Spain\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThe Sibarist B3 Flat filter suits home brewers and competition-oriented baristas using a flat bed dripper in the Kalita 185 style who want a fast draw-down, even extraction, and a clean, sweet cup. Brewers who prioritize organic materials and compostable packaging will also find the B3 a good match.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThe B3 Flat filter is shaped for flat bed brewers only and is not compatible with cone-shaped drippers such as the V60 or Chemex. It requires a brief folding and rinsing step before each brew; brewers seeking a no-prep, drop-in filter will need a different option.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhich drippers are the Sibarist B3 Flat filters designed for?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe Sibarist B3 Flat filter is designed for flat bed drippers in the Kalita 185 style. It is not shaped for cone drippers such as the V60 or Chemex. Brewers should confirm their dripper uses a flat bed before ordering.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eDo the B3 Flat filters need to be folded before use?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eYes. Each B3 Flat filter arrives as a flat sheet with pre-scored crease marks. Before brewing, fold all four edges along the indentation lines, seat the filter in the dripper, and rinse from the center outward with hot water in a circular motion until the filter is fully adhered to the dripper walls with no air gaps.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhy does the rinsing step matter for the B3 Flat filter?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eRinsing the Sibarist B3 Flat filter ensures the paper adheres fully to the dripper walls, eliminating air channels that would allow water to bypass the coffee bed. Starting at the center and moving outward in a circular motion helps seat the entire surface evenly, which is what gives the B3 its characteristic uniform extraction.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eAre the B3 Flat filters and their packaging compostable?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe B3 Flat filter paper is 100% organic. Sibarist also packages the filters in organic, compostable materials, so both the used filter and the packaging can be composted rather than sent to landfill.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eHow many filters come in a pack?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eEach pack of Sibarist B3 Flat Specialty Coffee Filters contains 25 sheets. The filters are stacked flat and pre-creased, ready to fold before each brew session.\u003c\/p\u003e","brand":"Sibarist","offers":[{"title":"25","offer_id":68211132989661,"sku":"SPS-SB\/FLAT\/B3-25","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/3315\/1709\/files\/Untitled-5-sq.jpg?v=1792208967","url":"https:\/\/coffeeroastco.com\/zh-hans\/products\/sibarist-b3-flat-specialty-coffee-filters-flat-bed","provider":"CoffeeRoast Co.","version":"1.0","type":"link"}