All CAFEC filter papers (except the Light Roast Filter) have "Two-Side Crepe", i.e. the paper has been dried with hot air so that the crepe remains on both sides. This ensures a stable, fast flow of water. Conventional filter papers are dried with a heating roller so that the crepe is pressed down on one side.
The traditional filters differ from the abaca filters mainly in the material. Both are made from paper pulp, but the Abaca filters are still made with a proportion of Abaca (Manila hemp). Abaca fibers are four times as strong as normal pulp fibers, but only half as thin. The Abaca fibers give the filters good toughness and elasticity.
With the Abaca+, Cafec has launched a further development of the popular Abaca filter. A new manufacturing method, the so-called "Fine-Grained" method, gives the Abaca+ filters an even more uniform paper texture, which is intended to ensure an even, very fast water flow.
With the Light Roast, Medium-Dark Roast and Cafec has developed dark roast filters that are specially tailored to the different coffee roasts. The different filters have different paper densities that control the flow of water and give the cup a balanced, rich flavor or sweetness depending on the coffee roast. The water temperature that should be selected when using the filter is indicated on the packaging of the respective filter.