K-Cups are individual coffee pods for Keurig coffee machines. The system was introduced in 1998 by Keurig, a subsidiary of Green Mountain Coffee Roasters. Dunkin' Donuts released K-Cups featuring its coffee in 2011.
K-Cups contain coffee grounds and nitrogen to prevent oxidation. When placed in a Keurig machine, needles pierce the top and bottom of the K-cup, allowing water to pass through, with the K-cup acting like a coffee filter. The process brews a cup of coffee in under a minute.Learn more about Coffee & Tea