Using the Perfect Pod EZ-Carafe instead of wasteful k-carafe packs allows you to use the coffee of your choice and save money too! The EZ-Carafe offers the best value and the highest quality refillable carafe capsule on the market for carafe-sized brewing (up to 4 cups in one brew cycle). The patented Self-Tamping Spring applies pressure to the coffee eliminating voids in the grounds, forcing hot water to come in contact with virtually every grain of coffee, yielding the fullest extraction and best-tasting coffee. Specially designed EZ-Carafe paper filter eliminates gritty residue and excess oils, so they don't end up in your cup.