Cone-shape ensures uniform extraction for pure coffee flavor; Thicker (20-30% more than the competition) specialty fiber filter design keep bitter elements, oils, and grounds in their place (and out of your cup); Will fit most other cone-shaped filter coffeemakers; Removes impurities, acidity, unhealthy and bitter elements from the coffee. In your brewed cup you will find only the caffeine and desirable aromatic oils of the coffee beans