Turn off and unplug the Keurig
Remove any K-Cup pod from the brewer
Empty the water reservoir
Remove the water filter, if installed
Fill the reservoir with equal parts white vinegar and water, or use Keurig descaling solution mixed as directed
Place a large mug on the drip tray
Run a brew cycle without a pod
Discard the hot liquid
Repeat until the reservoir is empty
Let the brewer sit for 30 minutes
Rinse the reservoir thoroughly
Fill the reservoir with fresh water
Run multiple brew cycles with plain water until the vinegar or descaling solution is gone
Wipe the exterior and drip tray
Reinstall the water filter, if removed