CoffeeSock NutMIlk filters are durable and may last a year or more. CoffeeSock filters are a reusable alternative to paper filters and nylon sacks. All of CoffeeSock’s filters out-perform any comparable disposable and reusable filters. CoffeeSock filters are made with Certified Organic Cotton. Cotton imparts no flavor on the finished brew unlike paper. Cotton is 90% cellulose, which is a tasteless and odorless compound that is insoluable in water. Wood is 40-50% while Hemp is approximately 45% cellulose. Coffee Sock filters are made in Austin, Texas. All filters are sewn and packaged by happy human beings making a fair and living wage. Packaged 1 Filter to a pack. ReUsable | ReNewable | Economical | Simple Made to Fit: Canning Jar Manufactured in the USA Easy cleanup - Just empty nut blend, rinse, and hang to thoroughly dry. High quality and less expensive than many market alternatives. Made from Organic Cotton - a responsibly produced, renewable resource