Changing the filter on a keurig coffee maker takes a few minutes: soak the cartridge, lock it into the holder, and place it back in the tank.
If your coffee has started tasting flat, dull, or a little off, the water filter is one of the first things to check. A Keurig water filter does a quiet job, but you notice it fast when it falls behind. Fresh water going into the brewer usually means a cleaner cup coming out.
The good news is that this job is easy once you know where the filter sits and how the holder opens. You do not need tools. You do not need to take the brewer apart. You just need the right replacement cartridge, a little water, and a few calm minutes at the sink.
This article walks you through how to change the filter on a keurig coffee maker without guesswork. You’ll see what to do before you start, how to avoid the small mistakes that trip people up, and what to do if your model does not use the same filter setup.
What The Keurig Filter Does Before You Change It
The filter inside many Keurig water reservoirs is there to cut down chlorine taste and help the brewer start with cleaner water. It is not the same as descaling. Descaling deals with mineral buildup inside the machine. The water filter sits in the reservoir and works on the water before brewing starts.
That difference matters because people often mix the two jobs together. If your coffee tastes odd, the filter may be due for a swap. If the brewer is slow, noisy, or brewing short cups, scale may also be building up inside. One job helps taste. The other helps machine flow.
Most Keurig filter setups use a small charcoal cartridge that fits into a plastic holder attached inside the reservoir. On many models, that holder clips open at the bottom. The cartridge slides in, the base snaps shut, and the unit drops back into the tank.
If your brewer came with a water filter starter kit, that holder is already the piece you need. If you bought the machine without one, you may need the handle and cartridges as separate parts. Also, not every Keurig model uses the same handle length, so matching the reservoir style before you buy a refill saves a headache.
How To Change The Filter On A Keurig Coffee Maker Without Missing A Step
Set the brewer somewhere steady and work near the sink. You do not need to unplug the machine for this task if you are only handling the reservoir, though many people like doing it while the brewer is idle and cool.
Before you start, remove any old water from the reservoir. A half-full tank makes the job sloshy, and a dry holder is easier to handle. Once the tank is empty, you can pull the filter unit out and swap the cartridge with less mess.
- Remove The Reservoir — Lift the water tank off the brewer and carry it to the sink.
- Take Out The Filter Handle — Pull the filter assembly straight up from inside the reservoir.
- Open The Holder — Press the tabs near the base and separate the bottom section.
- Discard The Old Cartridge — Remove the used charcoal filter and throw it away.
- Soak The New Cartridge — Place the new filter in fresh water for about 5 minutes.
- Rinse The Cartridge — Run fresh water over it for about 60 seconds.
- Insert The New Filter — Place the cartridge into the holder and snap the base shut.
- Return The Handle To The Tank — Slide the filter assembly back into its slot in the reservoir.
- Refill And Reinstall — Fill the tank with fresh water and place it back on the brewer.
That is the full job. Once the tank is back in place, brew a cleansing cup with no pod if you want to flush fresh water through the system. That first water-only run is a nice touch after any filter change, mainly if the brewer has been sitting for a while.
Quick Check Before You Snap It Shut
The cartridge should sit evenly inside the holder. If it looks crooked or the base will not close, do not force it. Pull it back out, turn it, and try again. A forced fit can crack the plastic tabs or leave the filter loose inside the reservoir.
Also check that the handle is seated at the right depth in the tank. On many Keurig reservoirs, there is a marked spot or a molded guide that shows where the top of the holder should line up. If the handle rides too high, the tank may not sit back on the brewer as it should.
When To Replace A Keurig Water Filter
A fresh cartridge does not last forever. Keurig’s own refill guidance says the filter cartridge should be changed about every two months or after around 60 tank refills, whichever comes first. If your home brews a lot of cups each day, that refill count can sneak up on you faster than the calendar does.
You can also use taste and smell as backup signs. If the coffee starts tasting a bit flat, has a faint chlorine edge, or loses the clean flavor you are used to, the filter may be due. That is not a perfect test, though. Taste changes can also come from old pods, stale water, or scale inside the brewer.
| Sign | What It Often Means | What To Do |
|---|---|---|
| 2 months have passed | Normal filter life is up | Swap the cartridge |
| About 60 tank refills used | Charcoal is likely spent | Install a fresh one |
| Coffee tastes off | Filter or water issue | Change filter, then test |
| Brewer says replace filter | Reminder has come up | Change it and reset if needed |
If your model has a filter reminder, use it. If it does not, an easy fix is writing the date on the cartridge box or setting a phone reminder for two months from the day you change it. Small habit, big help.
Keurig Filter Change Mistakes That Cause Trouble
Most filter swaps go smoothly. The usual trouble comes from a few tiny mistakes that seem harmless in the moment. Skip them, and the whole job feels much easier.
- Skipping The Soak — A dry charcoal cartridge is not ready to go straight from the package into the holder.
- Forgetting The Rinse — The quick rinse helps wash away loose carbon dust before brewing starts.
- Using The Wrong Handle — Some Keurig models use short-handle kits while others use rear or tall styles.
- Forcing The Base Closed — If the holder does not snap shut, the cartridge may be turned the wrong way.
- Leaving Old Water In The Tank — Starting with fresh water gives the new cartridge a clean start.
- Assuming Every Brewer Has A Filter — Some Keurig machines do not use this in-tank filter setup at all.
One more thing trips people up: they change the water filter and expect it to fix every brewing problem. It will not clear scale from the internal lines. It will not fix clogged needles. It will not solve a pump issue. If taste gets better but brew performance still feels off, the brewer may need cleaning or descaling too.
If The Reservoir Will Not Sit Back Properly
Take the tank back off and look at the filter handle first. It may not be pushed down all the way, or the holder may be touching the side of the reservoir at an odd angle. Reseat it, then place the tank back on the brewer with a straight downward motion.
If the problem stays, check that you are using the right tank and the right filter kit for that brewer. Keurig sells replacement reservoirs and filter parts by model, and a close-looking piece is not always the right one.
Taking Care Of The Reservoir While The Filter Is Out
A filter change is a good time to clean the reservoir. You already have the tank in your hand, and it takes only a minute or two more. That small bit of care can help the brewer stay fresher between deeper cleaning sessions.
Wash the empty reservoir with mild dish soap and warm water if your model allows hand washing. Rinse it well so no soap film stays behind. Then wipe the outside dry before putting it back. If you are unsure whether your tank is dishwasher-safe, check the manual for your model instead of guessing.
While you are there, glance at the valve area and the tank opening. If you see slimy residue, cloudy film, or debris, clean that off before adding fresh water. A new filter dropped into a dirty tank is not much of a win.
- Wash The Tank — Use mild soap and warm water on the reservoir.
- Rinse Well — Flush away any soap so it does not affect taste.
- Wipe The Edges — Clean the lip, handle area, and corners where film can sit.
- Refill With Fresh Water — Start the new cartridge with clean water, not leftover stale water.
If you fill the tank from a tap with heavy minerals or noticeable chlorine smell, a clean reservoir and fresh cartridge help a lot. If your water is hard, you still need regular descaling on schedule, since the water filter and descaling job do two different things.
How To Tell If Your Keurig Model Uses This Filter Setup
Not every Keurig coffee maker has an in-reservoir water filter. Many do, but not all. The quickest way to tell is to remove the tank and look inside for a long plastic holder slot, a built-in guide near the bottom, or an existing filter handle clipped in place.
If your brewer came with a starter kit, you are set. If there was no filter in the box, that does not always mean the brewer cannot use one. Some models are compatible with a water filter kit sold on its own. Others are not built for that setup at all.
Here are a few easy checks before you buy parts:
- Check The Manual — Search the use and care guide for “water filter” or “cartridge.”
- Look Inside The Tank — A molded slot or holder guide usually means the reservoir accepts one.
- Match Your Model Number — Buy filter kits and replacement tanks by brewer model, not by sight alone.
- Use The Keurig Parts Page — The model lookup helps narrow down which reservoir or filter parts fit.
If you do not see any holder inside the tank and the manual says nothing about a charcoal water filter, your brewer may rely on plain reservoir care and regular descaling instead. In that case, do not try to wedge a filter unit in place. It needs to fit the tank as designed.
Short Handle Vs Other Filter Styles
Keurig sells different water filter starter kits for different reservoir shapes. One common version is the short-handle kit for brewers with a shorter tank. Another style fits different layouts. That is why “Keurig filter” alone is not enough when buying parts online.
When in doubt, search by model name first, then confirm the tank shape and part notes. That little check can save you from a return.
Key Takeaways: How To Change The Filter On A Keurig Coffee Maker
➤ Empty the tank before you start to keep the swap clean.
➤ Soak the new cartridge for 5 minutes in fresh water.
➤ Rinse the cartridge for about 60 seconds before use.
➤ Change the filter about every 2 months or 60 refills.
➤ A new filter helps taste, not scale inside the brewer.
Frequently Asked Questions
Do I need to reset anything after changing the filter?
Some Keurig models have a filter reminder and some do not. If your brewer shows a reminder, clear it through the menu or maintenance screen after the new cartridge is in place. If there is no reminder system, set a phone alert for two months out.
Can I use my Keurig without a water filter cartridge?
Yes, many Keurig brewers will still brew without the in-tank cartridge installed. The machine does not need that filter to turn on or make coffee. You may still notice a drop in taste if your tap water has a chlorine smell or other flavor you can pick up in the cup.
Why does my coffee still taste odd after I changed the filter?
If the new cartridge is in place and the taste is still off, try fresh water and run a water-only brew. Then check the pod, clean the reservoir, and think about descaling if it has been a while. A filter swap helps source water, but it does not clear old scale inside the brewer.
Can I wash and reuse an old charcoal cartridge?
No, the charcoal cartridge is a replace-and-discard part. Rinsing an old one does not bring it back. Once the cartridge is spent, it has done its job. Reusing it only adds guesswork, and the water going into your cup will not be as clean as you think.
What if my replacement cartridge does not seem to fit?
Start by checking the holder style and the brewer model. The cartridge may be right, while the handle or starter kit is for a different reservoir shape. Do not jam it into the base. Compare the part notes on the package with your brewer model and tank style before trying again.
Wrapping It Up – How To Change The Filter On A Keurig Coffee Maker
Once you’ve done it one time, how to change the filter on a keurig coffee maker feels like a small kitchen habit, not a chore. Lift out the tank, open the holder, swap the cartridge, soak, rinse, snap, and slide it back into place. That is the whole rhythm.
The real payoff is in the cup. Fresh water helps the coffee taste cleaner, and a clean reservoir keeps the whole setup from getting stale. Pair this filter swap with regular reservoir washing and timely descaling, and your brewer has a much better shot at staying steady day after day.
If you were putting this off because it felt fiddly, you can cross it off now. The next time the coffee tastes a little tired, you’ll know where to start.