Fino's Number 4-Size Flexible Mesh Reusable Coffee Filter is designed for brewing 8-12 servings of coffee in automatic drip coffee machines, manual pour-over coffee makers, and other hand pour or hand drip coffee brewing accessories. This permanent coffee filter creates less waste for sustainable living practices and is reusable for years to come. It's convenient to use and more economical than disposable paper coffee filters. The extra-fine (#600) mesh filters out sediment but won't strip away those precious coffee oils that are essential for brewing rich flavor, like paper filters can. Instead, precious oils flow through freely to infuse every brew with a complexity and aroma that creates a better tasting cup of coffee.