Descaling is an important part of cleaning your Keurig brewer, as it removes calcium deposits or scale that can build up inside the machine over time. Descaling helps to extend the life of your coffee maker and keeps your coffee tasting as good as it did when you first brought your model home. Here are the steps to descale a Keurig coffee maker:

1. Empty the reservoir of water and remove any K-cups.
2. Pour descaling solution into the reservoir and add fresh water.
3. Place a large ceramic mug on the drip tray.
4. Start the brew cycle without a K-cup and let the machine run as usual, using a mug to catch the liquid.
5. Repeat this process a second time.
6. Repeat the process one last time, but with 10 ounces of fresh water to remove any vinegar taste.
7. Brew coffee as usual.

It is recommended to descale your Keurig every three to six months with Keurig descaling solution. The descaling process can help extend the life of your brewer when used regularly.