SYPHONPrecision Filters for Syphon & Vacuum Coffee Brewing High-performance 80 mm circular filters designed for syphon and vacuum coffee brewers. Developed with SIBARIST's FAST or B3 Specialty Coffee Filter Technology, SYPHON delivers precise flow control, clean extractions, and consistent results in immersion brewing. FAST: High-permeability filtration for fast, controlled extractions. FAST allows brewers to work with finer grind sizes and higher extraction yields, producing full-bodied yet clean cups with a silky mouthfeel.B3: Lower porosity and optimized material thickness enhance sweetness, clarity, and balance. B3 is ideal for brewers seeking refined, sweet extractions with a clean finish. Materials & Packaging:FAST or B3 Specialty Coffee Filter paper technology100% organic, crafted in BarcelonaSealed packaging for freshness, protecting against dust and odorsSustainable FSC-certified paper packaging