Unplug the Keurig coffee maker
Remove the water reservoir and empty it
Fill the reservoir with Keurig descaling solution (or use a 1:1 mix of white vinegar and water)
Place a large mug on the drip tray to catch the descaling liquid
Start the brewer and run a “Brew” cycle without a K-Cup
Continue running brew cycles until the “Add Water” / reservoir empty prompt appears
Let the machine sit for 30 minutes
Refill the reservoir with fresh water
Run multiple brew cycles without a K-Cup until the water reservoir is empty
Refill the reservoir again with fresh water
Run additional brew cycles until there is no vinegar/solution smell or taste
Empty any collected liquid from the mug and drip tray
Wipe the exterior and remove/clean the K-cup holder and funnel area
Run one final brew with a fresh K-Cup (discard the first cup if you still notice any taste)