Chemex pre-folded coffee filters are made of heavy specialty paper which removes even the finest sediment particles, oils and reduces bitterness in the cup. The cone shape of the filter directs the speed and flow of water through the coffee, creating a uniform extraction. Coffee made through the Chemex has a clean, full flavour. The natural filters are oxygen cleaned to prevent chemical residue or taste. These pre-folded filters are made for 6, 8 or 10 cup Chemex and come in a pack of 100.