Just in case you're not up to date on the significance of paper filters, we'd love to fill you in. See, there are plenty of oily and rather undesirable substances in your average cup of coffee. When you brew using the pour over method with quality paper filters, these filters succeed in blocking out the diterpenes (the nasty stuff). Diterpenes are further divided into kahweol and cafestol, and they usually make themselves known by floating to the surface and forming a sheen. But not with these incredibly resistant, thick, super quality Hario paper filters. Here is a filter that does its job - lets the delicious flavours run free and prevents the diterpenes from disturbing your otherwise exceptional cup of coffee. Paper filters from Hario come in packs of 100, and they are ingeniously designed with a pointed tip, designed for optimal extraction. They complement all the other Hario gear you can get, so start brewing and don't look back.