How often should I descale my Keurig K-Duo Essentials and what's the process?

You should descale your brewer every 3 months, or if you experience low coffee volume or slower performance. The descaling procedure takes approximately 75 minutes and involves three steps: (1) running a descaling solution rinse, (2) letting the brewer rest for at least 30 minutes, and (3) running fresh water rinses four times on both the carafe and single cup sides. (Page 5)