Coffee filter 101 - coffee simply tastes better thanks to a better filter. Melitta coffee filters with flavour openings are made from Nordic paper pulp. The filters contain no recycled fibres. The punched edges are embossed by machine, which means that no glue or other binding agents are used. Melitta coffee filters are perforated with small, tiny holes that allow the coffee to brew at perfect speed. All the flavours and aromas go into the cup, while the bitter substances remain in the drip tray. The delivery includes 9 packs of 40 filters.