Have a large mug at the ready, too—you’ll need it when draining out the descaling solution. If the Keurig model has the auto-off capability enabled, disable it according to the owner’s manual.

If you do not have a Keurig model with a descaling alert light on it such as on the Keurig K-Classic Coffee Maker available on Amazon, it can be difficult to know when to descale your Keurig as the ...