No! Despite the fact that cupcake liners seem to be very similar to paper coffee filters, they do not provide a suitable replacement for real coffee filters. Cupcake liners are made to keep everything inside them, including moisture, so your coffee would not be filtered through them well. Cupcake liners are manufactured from a variety of materials. The paper used to make coffee filters is perforated, allowing your brew and beans to be readily separated. Whereas the Cupcake liners are made of solid, perforation-free paper, so nothing can escape in any way.