Audrey HayesBy Audrey Hayes

Updated November 2026

To replace a Keurig water filter, you remove the old cartridge from the water reservoir lid, insert a new one, soak it briefly, and reset the machine’s filter reminder. The whole job usually takes under five minutes. Doing it on schedule keeps your coffee tasting clean and helps protect the brewer from scale and sediment.

When to Replace Your Keurig Water Filter

Keurig’s own guidance is to swap the filter every two months or after roughly 60 brews, whichever comes first. Many newer models flash a filter reminder on the display, but the reminder is only a timer or brew counter, not a sensor. If the water tastes flat, metallic or earthy, replace the filter early. Owners often report that a neglected filter is the first sign of a machine that is starting to need descaling.

Shopping for one? See our guide: 6 Best Keurig Single Serve Coffee Makers (2026): Expert Picks.

If you want a broader overview of filter timing across brands, see When and How to Replace Your Coffee Maker’s Water Filter. For a comparison of aftermarket options, Best Coffee Maker Water Filters is a useful next read.

How to Replace the Water Filter in Keurig Machines

The steps below apply to most Keurig models with a removable reservoir lid. Check your manual if your model differs.

  1. Turn the machine off and let it cool if it was recently in use.
  2. Lift the water reservoir out and remove the lid.
  3. Pull the old filter cartridge out of the lid holder. Some models release it with a gentle twist.
  4. Remove the plastic cap from the new filter and check that the foam or mesh side faces the correct direction, as shown in the packaging.
  5. Soak the new filter in cool tap water for about five minutes. This releases loose carbon dust and lets the filter start working properly.
  6. Insert the filter into the lid holder until it sits flush, then fill the reservoir with fresh water and reattach the lid.
  7. Turn the machine on and reset the filter reminder through the menu or by holding the appropriate button, as described in your manual.
  8. Run two or three cycles with no pod to flush the system before brewing a cup.

Resetting the Filter Reminder

Reset steps vary by model. Some Keurigs have a dedicated menu option for the filter, while others need a button combination held for several seconds. If the reminder keeps appearing after a reset, confirm that the filter is seated fully and that the lid is closed.

Filter Replacement Tips and Common Mistakes

  • Do not skip the soak. Dry or unsoaked filters can release carbon fines into the first cups.
  • Do not reuse an old filter, even if it looks clean. Used cartridges trap bacteria and stop filtering effectively.
  • Do not confuse filter replacement with descaling. A filter reduces some minerals but does not remove all scale, so the machine still needs periodic descaling.
  • Do not run the machine dry after a filter change. Keep the reservoir filled during the flush cycles.
  • Keep a note of the install date on the box or in your phone so you can track the two-month interval.

Most owners only need the replacement filters themselves, but a few accessories make maintenance easier.

  • Keurig replacement water filters: Filters made for the Keurig reservoir are sized to fit the lid holder correctly, which avoids leaks and gaps. View on Amazon
  • Keurig descaling solution: Filters do not replace descaling, so a dedicated solution is still useful every few months. View on Amazon
  • Soft-bristle brush: Handy for cleaning the reservoir and lid without scratching surfaces. View on Amazon

FAQ

Can I use a Keurig without a water filter?

Yes, most Keurig models will brew without the filter in place. However, you will lose the taste and scale reduction the filter provides, and the machine may need descaling more often.

Do I need to replace the filter if the reminder is off?

The reminder is a timer or brew counter, so the filter may still be due even if no alert appears. Follow the two-month or 60-brew guideline in your manual.

Why does my coffee taste odd after changing the filter?

A short flush with a few cycles of plain water usually clears leftover carbon dust. If the taste persists, check that the filter was soaked and seated correctly, and consult your owner’s manual or the manufacturer for model-specific help.

Conclusion

Replacing your Keurig water filter takes only a few minutes and is one of the easiest ways to keep your coffee tasting fresh. Replace it roughly every two months, soak it before installing, and flush the system afterward. Pair filter changes with regular descaling for the longest machine life.

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Audrey Hayes

About Audrey Hayes

Audrey Hayes is part of our editorial team and reviews and edits our coffee machines guides, checking product details against manufacturer specifications and owner feedback.