How To Descale The Keurig K‑Slim: Step‑by‑Step From Keurig’s Support Page

Keeping your Keurig K‑Slim clean is essential for reliable operation. Keurig’s official support page provides a clear, step‑by‑step procedure for descaling the K‑Slim, K‑Supreme, K‑Supreme Plus, K‑Slim + Iced, and K‑Iced Plus models. Follow the exact sequence below to remove mineral buildup and keep the machine running smoothly.

Table of Contents

What You’ll Need

Keurig Descaling Solution (one bottle)
Fresh tap water (to refill the reservoir)
Large mug or container for the drip tray
Access to a sink for rinsing

All items are listed on Keurig’s descaling hub and how‑to‑use pages: Descaling Hub, K‑Slim How‑to‑Use.

Fresh water being poured into a generic single-serve brewer reservoir; illustrative image, not exact K-Slim controls.

Step‑by‑Step Descaling Procedure

Prepare the Reservoir
With the brewer powered off and plugged in, empty the reservoir. Pour the entire bottle of Keurig Descaling Solution into the reservoir. Then fill the empty bottle with fresh water and add that water to the reservoir. Do not insert a K‑Cup pod. Place a large mug on the drip tray. Source
Activate Descale Mode
Press and hold the 8 oz and 12 oz buttons simultaneously for 3 seconds. When the DESCALE light flashes, press the BREW button to start the first descaling cycle. Source
Run Descale Cycles
After each brew, discard the hot liquid into the sink. Repeat the BREW press until the ADD WATER light illuminates, indicating the descaling solution has been used up. Source
Rinse with Fresh Water
Empty the reservoir, rinse the tank, and refill to the MAX fill line with fresh water. Press the flashing BREW button to start each rinse brew; discard the hot liquid. Repeat until the DESCALE notification turns off. The brewer is now ready for use. Source

Three-phase K-Slim descale sequence transcribed and condensed from Keurig official support instructions; diagram is not a photograph.

Descaling Frequency

Keurig recommends descaling the K‑Slim every three months using Keurig Descaling Solution. Source

Additional Resources

For detailed care instructions, refer to the K‑Slim Use & Care Guide PDF.

Conclusion

By following the button sequence and rinse steps outlined above, you can complete a full descaling cycle on your Keurig K‑Slim. Performing this routine every three months, as advised by Keurig, helps maintain the machine’s functionality.

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