Sibarist FLAT (FAST) vs Moccamaster CDGT Grand Basket

Fits

Flat basket

Flow

Fast · Manufacturer-stated

Material

Paper · Abaca

Reuse

Single-use

Availability

Specialty only

How it brews

The flat-bottom sibling of the FAST cone: a smooth, non-fluted paper using the same abaca technology, sized S (≈Kalita 155) and M (≈Kalita 185) for wave-style flat drippers, plus a larger size for basket machines. Because the wall is smooth rather than pleated, Sibarist markets it as keeping water in even contact with the whole bed and reducing bypass while still draining fast — a mechanism claim from the maker, not a measured result. It drops into a Kalita Wave 155/185 seat, so it's an option anywhere those papers fit. Single-use, made in Barcelona.

Fits

Flat basket

Flow

Unknown · Unknown

Material

Paper · Cellulose

Reuse

Single-use

Availability

In production

How it brews

The flat-bottom basket paper for Moccamaster's CDGT batch brewer, sized for the larger "Grand" basket rather than a wedge cone. It seats in the flat-basket family and interchanges with other basket papers of that fit, not with wedge or cone brewers. Moccamaster publishes no fast/medium/slow class, so we leave flow unrated. Like other batch baskets, the flat bed spreads the coffee wide and it needs no special handling.