CoffeeSock Cotton (V60) vs Sibarist B3 Specialty (cone)

Fits

V60 cone

Flow

Unknown · Unknown

Material

Cloth

Reuse

Washable, reusable

Availability

In production

How it brews

A reusable organic-cotton cloth filter cut for the V60 in 01/02 sizes. Like nel cloth, it passes more oils and some fines than paper — landing between paper's clarity and metal's heavy sediment — while cutting single-use waste. It needs the cloth-filter care routine: rinse thoroughly after each brew, store wet (many refrigerate it), and periodically boil it clean, or old coffee oils will turn the cup stale. There's no manufacturer or community flow rating within the V60 seat, so flow is left unrated.

Fits

V60 cone

Flow

Medium · Manufacturer-stated

Material

Paper

Reuse

Single-use

Availability

Specialty only

How it brews

The B3 version of Sibarist's abaca cone paper for V60-style cones, in S (01) and M (02). Where Sibarist's FAST papers are cut for high permeability and clarity, B3 is a lower-porosity sheet that Sibarist rates as medium flow — the trade being more contact time, more body and more retention on the same cone. That medium class and its low clog sensitivity are the maker's own framing, not measured here. It fits the V60-cone seat and interchanges with other cone papers there; a pre-brew rinse is the usual habit.