The Keurig® single cup coffee maker brews a single cup of premium coffee or tea one cup at a time. The Keurig® uses the proprietary k-cup® technology which delivers a consistent cup of coffee or tea, time and time again. The k-cup® is a small foil sealed vessel that contains a sealed paper filter filled with either fresh ground coffee or tea. The Keurig® brewer punctures the k-cup® and forces the proper amount of hot water through it giving you the freshest cup of coffee possible. Keurig® has partnered with popular coffee roasters across the country and has an extensive list of over 130 great products available for use in the Keurig® coffee maker.