Safe material: The coffee filter paper is made of unbleached paper, which is safe and non-chlorine. It not only has permeability, strength and water permeability, but also has clear and firm embossing, which can help you make delicious coffee. Wide application: Unbleached paper coffee filter paper is widely used in coffee machines and espresso machines of various . When you have a gathering with family or friends, you can easily use it for daily use and replacement.