ONE FILTER INCLUDED - CoffeeSock filters are built to last and last for a year CoffeeSock filters are a reusable alternative to paper filters and nylon sacks. All of our filters are of superior quality unlike other disposable and reusable filters. Cotton absorbs the oils derived from coffee beans, but the acidic will pass through. The finished coffee is fresh, rich, and strong. The paper filter retains the acidity of coffee without the paperwork. The depth of the French Press remains true to the depth of the french press. CoffeeSock filters are made from certified organic cotton. When brewed with cotton, it doesnt feel like paper filters. Cotton is 90% cellulose No taste or odor and will not dissolve in water. Wood is 40-50% and hemp is approximately 45% cellulose. CS filters are manufactured in Austin, TX. Sewing and packaging all of our filters is the happy people who are not afraid of their lives.