Sibarist Flat Bottom

Be the first ones to get the B3 FLAT Specialty Coffee Filter!

The B3 FLAT Specialty Coffee Filter utilizes the B3 Specialty Coffee Filter paper technology, jointly developed by Sibarist and 2021 World Brewers Cup Champion Matt Winton. This FLAT filter is for flat bed drippers (Kalita 185 style).

The B3 FLAT filter shape provides a brewing bed that promotes even extraction of the coffee particles, high uniformity turbulence and full access to the coffee bed. The B3 rigidness produce a minimum contact surface with the dripper and provides a fast extraction, but its material thickness and low porosity provides sweeter and clean cups, lowering bypass during the brewing process.

Sibarist packaging are made using composable materials.

B3 Flat filters are packaged in a flat stack with pre-folded creases for users to fold.

FILTER PREPARATION

1. Fold the 4 edges of the filter, following the indentation marks on the paper.When folding, it is fine to go over the folds, with no need to avoid the center area of the filter.
   
2. Place the filter on top of the dripper and gently push the edges of the filter with both hands to fold inwards
   
3. Starting from the center, gently and slowly rinse the filter with hot water by moving towards the outer edge in circular motion, while making sure that the entire surface of the filter is stuck to the walls of the dripper, without leaving any air channels between the filter and the filter holder.

The image shows how the filter should look before starting the infusion.

Manufactured with care in Barcelona.

Be the first ones to get the B3 FLAT Specialty Coffee Filter!

The B3 FLAT Specialty Coffee Filter utilizes the B3 Specialty Coffee Filter paper technology, jointly developed by Sibarist and 2021 World Brewers Cup Champion Matt Winton. This FLAT filter is for flat bed drippers (Kalita 185 style).

B3 Filter Papers are 100% organic.

The B3 FLAT filter shape provides a brewing bed that promotes even extraction of the coffee particles, high uniformity turbulence and full access to the coffee bed. The B3 rigidness produce a minimum contact surface with the dripper and provides a fast extraction, but its material thickness and low porosity provides sweeter and clean cups, avoiding bypass during the brewing process.

Sibarist packaging are made using organic and composable materials.

B3 Flat filters are packaged in a flat stack with pre-folded creases for users to fold.

FILTER PREPARATION

1. Fold the 4 edges of the filter, following the indentation marks on the paper.When folding, it is fine to go over the folds, with no need to avoid the center area of the filter.
   
2. Place the filter on top of the dripper and gently push the edges of the filter with both hands to fold inwards
   
3. Starting from the center, gently and slowly rinse the filter with hot water by moving towards the outer edge in circular motion, while making sure that the entire surface of the filter is stuck to the walls of the dripper, without leaving any air channels between the filter and the filter holder.

The image shows how the filter should look before starting the infusion.

Manufactured with care in Barcelona.

The Sibarist B3 Wave filter is a premium flat-bottom paper designed for 2–4 cup brewers such as the Kalita Wave, OREA, and April drippers. Engineered for balanced extraction, it provides a moderate flow rate that sits between ultra-fast papers and traditional filters, making it ideal for achieving clarity with body and sweetness in the cup.

Performance

The B3 filter’s slightly thicker, lower-porosity paper ensures even saturation of the coffee bed and consistent flow during pouring. This design reduces the risk of uneven extraction while allowing more control over brewing variables, including grind size, pour speed, and agitation. Its balanced flow makes it forgiving for various pour-over techniques without sacrificing cup quality.

Flavor Profile

B3 filters produce a clean cup with fuller body compared to high-permeability fast filters. By retaining more oils and fine particles, the filter highlights sweetness, complexity, and depth while maintaining clarity. This makes it particularly suitable for naturally processed or honey-processed coffees, or any bean where you want a richer, more nuanced cup.

Construction & Materials

Made from 100% organic, sustainably sourced fibers and FSC-certified packaging, B3 filters are designed for high performance without imparting paper taste. Their structural integrity supports repeated saturation without collapsing, ensuring consistent extraction for every brew.

The Sibarist FAST 185-size filters are 2 -4 cup filters engineered for speed, clarity, and consistency, designed specifically for flat-bottom brewers such as the Kalita Wave 185, Orea, and April. Their advanced paper construction delivers a noticeably faster flow rate than standard 185 filters, enabling more flexible brew methods and quicker drawdowns.

Performance
Thanks to their high-permeability structure, FAST filters allow finer grinds and more aggressive pouring without clogging. This efficiency enhances extraction control and shortens total brew time, making brewing more streamlined and predictable, even with challenging coffees.

Flavor Profile
The FAST paper minimizes oil and fines retention, resulting in a cup that is exceptionally clean and bright. Acidity, fruit tones, and delicate aromatics become more pronounced, making these filters especially well-suited to light and washed coffees where clarity is a priority.

Construction & Materials
Crafted from high-quality, sustainably sourced fibers, the filters maintain strength, shape, and neutrality during brewing. They are designed to avoid imparting paper taste while maintaining structural integrity in flat-bottom drippers.

For home brewers and professionals seeking maximum precision, vibrant clarity, and consistent high performance, the Sibarist FAST 185 filters offer a specialized, high-control tool that enhances both workflow and cup quality.

As a safety precaution, all filters are final sale and not returnable.

FLAT M fits with 02 size / Medium/ 1-4 cup size flat bottom brewers 

Experience the fullest potential with SIBARIST Filters 

Fits with Flat Bottom Brewers. 

Experiment with fast flow filters by changing grind size, pulse rates and agitation

FLAT 2 – The Next Evolution in Zero-Bypass Brewing

The Sibarist Filters - FLAT 2 is the advanced version of the original FLAT concept, specifically created to promote zero-bypass brewing experience. This filter completely adheres to the dripper walls, removing air channels and resulting in a consistent, controlled extraction without the potential for coffee particles to become trapped in fluted or wavy surfaces.

Zero-Bypass Innovation for Ultimate Precision

The FLAT 2 takes SIBARIST’s no-bypass design to the next level:

Thanks to a fully sealed flat-bed structure decreasing the chance of bypass, the Flat 2 M filters enhances evenness and repeatability, ensuring greater precision in every brew
Seamless "plug-and-play" design, improving user experience and workflow efficiency

FAST Technology for Optimal Flow
Powered by FAST Specialty Coffee Filter technology, the FLAT 2 achieves an even and fast drawdown without the need for air channels, ensuring smooth, controlled extractions every time.

Materials & Packaging

FAST Specialty Coffee Filter paper technology
100% organic, crafted in Barcelona
Sealed packaging for freshness, protecting against dust and odors
Sustainable FSC-certified paper packaging

Engineered for baristas, competition brewers, and coffee enthusiasts, the FLAT 2 redefines consistency, efficiency, and precision in coffee brewing.

The SIBARIST OREA B3 Wide filter is a high-quality paper filter designed for use with OREA brewers, especially models with a wider base. This 100-sheet pack brings B3 Specialty Coffee Filter technology to your pour-over setup, offering a balance of flow, control, and flavor clarity.

Filter Technology & Performance

The B3 Wide filter features thicker, low-porosity paper that provides a moderate flow rate. This allows for consistent saturation of the coffee bed and even extraction. The paper helps reduce bypass, ensuring that nearly all water passes through the coffee grounds for a reliable and precise brew.

Cup Profile

The B3 Wide filter produces a sweet, clean, and balanced cup. By retaining more oils and fine particles than faster-flowing papers, it delivers fuller body, richer sweetness, and nuanced flavors without compromising clarity. This makes it ideal for naturally processed, honey-processed, or complex beans where depth and balance are desired.

Materials & Craftsmanship

The filter's composition ensures minimal paper taste while allowing the coffee’s natural flavors to shine. The filters are packaged to maintain freshness and protect against dust or contamination.

This filter is ideal for OREA brewers with wider bases, coffees that benefit from enhanced body and sweetness, and pour-over brewers who want consistent, reliable results with clean, balanced flavor.

OREA FLAT 2. The Next Evolution in Zero Bypass Brewing

The OREA FLAT 2 carries the original SIBARIST FLAT concept into a new generation. It is thoughtfully designed to create a less bypass environment by gently sealing against the OREA interior walls. This prevents air channels from forming and keeps coffee particles from settling in fluted or wavy surfaces. The result is a calm, even, and more controlled extraction from start to finish.

Low Bypass Approach for Greater Precision
The OREA FLAT 2 introduces a fresh structure that makes SIBARIST’s low bypass design even more effective. It supports a low airflow flat bed that allows for a low bypass brew. This added stability brings more evenness and makes your brews easier to repeat with confidence. The filter is simple to use and slips naturally into your workflow, allowing a smoother brewing experience.

FAST Technology for a Clean, Steady Flow
The OREA FLAT 2 is made with FAST Specialty Coffee Filter technology, which helps water move through the coffee bed quickly and evenly. It maintains a more consistent drawdown without depending on air channels. This creates a smooth and predictable extraction that highlights clarity and sweetness in the cup.

Materials and Packaging
FAST Specialty Coffee Filter paper technology with materials crafted in Barcelona
Sealed packaging that preserves freshness and protects from dust and odors
Sustainable FSC certified paper packaging

Created for baristas, competition brewers, and thoughtful home enthusiasts, the FLAT 2 brings a new level of consistency, efficiency, and precision to your pour over ritual. It is made to support brews that feel steady, expressive, and deeply satisfying.