How do I descale my K Cafe and how often should I do it?

You should descale every 3–6 months by pouring the entire bottle of Keurig Descaling Solution into the emptied reservoir, refilling the bottle with water and adding that too, then running rinsing brews until the Add Water light illuminates. After a 30-minute soak, discard the solution, rinse the reservoir, and complete at least 12 fresh water rinsing brews using the largest brew size. The entire process takes approximately 45 minutes. (Page 5)