The Keurig K-Duo coffee maker stands ready to deliver hot or iced. It brews single cups and full carafes with equal ease. This model boasts MultiStream Technology, ensuring full flavor extraction. Multiple brew sizes are available, ranging from 6 to 12 cups for carafes and 6 to 12 ounces for single cups. The large 72-ounce water tank minimizes refills. Brew over ice, go strong, or get extra hot with the touch of a button.