OREA FLAT
These filter papers, also known as OREA TYPE-G filter papers, are our standard flat filter papers. They offer a moderate filtration speed, neither too fast nor too slow. One side of the filter paper is textured, while the other is smooth, designed for efficient filtration. For best results, place the textured side against the filter cup, with the smooth side facing inwards (to hold the coffee grounds) . Using these filter papers requires a Negotiator to place them in the filter cup, enabling a low bypass brewing environment. We invented this method about four years ago, and it has become very popular due to its ability to brew clean, sweet, and juicy coffee with relatively simple filter paper preparation.
FILTER SIZING CHART
| Filter name |
Compatible brewers |
| OREA O1 Flat filter (also known as Type G) / equivalent to 155 size | V2, V3 small/155, O1 |
| OREA O1 Wave filter / equivalent to 155 size | V2, V3 small/155, O1 |
| Sibarist Fast Flat O1 | V2, V3 small/155, O1 |
| OREA V4 Flat Filter (also known as Type G) / equivalent to 185 size | V4 Narrow, V4 Wide, V3 Large/185 |
| OREA V4 Wave Filter / equivalent to 185 size | V4 Narrow, V4 Wide, V3 Large/185 |
| Sibarist Flat V4 Narrow / equivalent to 185 | V4 Narrow, V3 Large/185 |
| Sibarist Cone V4 Wide / equivalent to cone size 2 | V4 Wide with APEX base |
| Big Boy Wave Filter / unique to Big Boy Brewer | Big Boy Brewer |
| Z1 Filter x Sibarist | Z1 Brewer |