Sibarist FLAT (FAST) vs MHW-3Bomber Flat Paper (Meteorite)

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

MHW-3Bomber's flat-bottom paper in the 155 class, a cellulose sheet for flat-bed brewers. It sits in the flat-basket family and interchanges with other 155-class flat papers there rather than with cones. MHW-3Bomber publishes no fast/medium/slow class, so we leave flow unrated. The flat bed spreads the coffee wide the way flat-bottom papers do; a pre-brew rinse is the usual habit.