SIBARIST FAST B3 flat M hybrid specialty filters


15,6038,80 inc. VAT

The filter adapts to flat bed drippers (like Kalita 185 types and OREA).

B3 Specialty Coffee Filter paper technology, developed with Matt Winton.
100% organic.
Manufactured with care in Barcelona.

The sealed packaging guarantees optimal conservation of the filters and prevents contamination from external dust and odours. Protect your cup!
Packaging made using organic and compostable materials.

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


    1. Fold the 4 edges of the filter following the indentation marks on the paper. It is not necessary to keep the flat bottom shape of the filter; you just need to go over the folds.
    2. Place the filter on top of the dripper and press the central part of the paper downwards.
    3. Rinse the filter, starting from the centre and moving towards the outer edge by pouring hot water in a circular motion. Make 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.


B3 FAST Specialty Coffee Filter

The innovative first flat-bottomed non-fluted coffee filter in the world, now with the B3 technology applied.

A Matt Winton Collaboration “Collaborate to create!”

The B3 Specialty Coffee filter technology developed together with Matt Winton (2021 World Brewers Cup Champion). Matt has been our guideline during the whole development process for more than a year, he has been testing all our trial materials providing his expertise and feedback during the whole process, letting us to rethink the composition and processes,

It has been a long journey but thanks to Matt’s expertise, his willing to experiment and to find the perfect material, we have finally obtained a very unique and extraordinary material that can be applied with different filter shapes, The B3.

The B3 FLAT, Matt Winton.

“I was most impressed with this new paper type in a flat bottom brew like in the Orea, since playing around with low bypass brews, where the paper adheres to the wall fully, and flow should just be at the bottom of the filter. I loved how much clarity, and sweetness, and depth this paper filter provided over other paper filters. It flows really fast the first few pours, and then slows down a bit, naturally, but always drew down in a really even way, and faster than most flat papers, especially considering a low-bypass brew.

I didn’t realise that the paper filter had as much of an impact as this, until we started working on the new B3 paper with Sibarist. As the paper passed water so quickly, but still provided a good resistance when you brewed in it, it was such an interesting approach to brewing that I hadn’t tried before.

Now I brew all my lighter roast washed coffees with a Flat type of brewer like an Orea, or Stagg, with a finer grind, hotter temperature, and 3 pour structure to maximize extraction and I always turn to the B3 paper to get the best clarity and structure in my flat brews.”

SIBARIST FAST B3 flat M hybrid specialty filters
15,6038,80 inc. VAT Select options