Where Can I Purchase Tylers Acid-Free Coffee Tyler’s acid-free single serve coffee from organic fair trade beans is the world’s first and only one available for Keurig machines and French presses alike, featuring a Z-Roasting process designed to be gentle on your stomach – ideal for anyone suffering from heartburn or acid-related health conditions. Enjoy its smooth flavor profile either adding cream, or enjoy it black; its robust brew ability works just as well!