Nothing like a big boost of bacteria in your morning coffee, right? If you’re not taking care of your beloved Keurig coffee maker, that may be exactly what you’re getting in each cup. Don’t worry, though. After you read this guide, you’ll be able to clean your Keurig from top to bottom so that your next coffee is your freshest and best tasting yet.
Step 1: Wash and wipe the reservoir and other removable parts
Start by unplugging your Keurig; you don’t want to damage the electronics or risk electrocution. Then, remove all the detachable components, including the water reservoir, the mug stand/drip tray, and the K-Cup holder inside the coffee maker. Carry them all over to the kitchen sink and give them a thorough wash with soapy water, just as if they were ordinary dishes. Set them aside to dry while you work on other components.
This is also a great time to take a washcloth or a wet paper towel and give the whole Keurig a good wipe down. The coffee maker, especially in busy settings like offices, can collect a lot of dust over time. You don’t want any of that dust mixing with your fresh water or coffee when you’re finished here, so it’s a good idea to give the surface a general cleaning.
Step 2: Clean all the crevices
Start by cleaning all around the K-Cup holder’s housing. Different Keurig models have slightly different insert methods, but the basics are the same. Use the brush to clean around the pod holder and the deep nooks in this part of the Keurig. Grit and lost coffee grounds tend to collect here. A flashlight or good overhead lighting is helpful. A nearby bowl of water or wet cloth can help, but try to avoid using soapy water for this stage — that soap may prove difficult to get out, and you don’t want it tainting your coffee.
When finished with the above steps, get out your pin/paperclip and examine those toothy components that poke into the K-Cups. There should be a small hole in each “tooth” for the hot water/coffee to pass through. Poke your pin through that hole and wiggle it around to loosen any caked-on debris and help remove any blockages. If your Keurig has been running slowly, this could be because of a clog in one of these holes. There are also dedicatedavailable.
Step 3: Run through with vinegar
Many Keurig components are inside the coffee maker, well out of your reach. Fortunately, there’s an easier way to conduct an internal cleaning than dismantling the whole machine: Common kitchen vinegar is acidic enough to remove scale buildup but harmless to the rest of the Keurig. Take the water reservoir and fill it with a solution of half white vinegar and half fresh water. Lock it back into the Keurig base, put all the other components back in place, and get a mug handy. It’s time to make some hot vinegar.
Run the Keurig on normal settings and keep filling mugs with the vinegar mixture until it is completely gone. This is going to stink a little (you may want to open a window for ventilation), but as we said, it’s not harmful to your Keurig, and it will help remove that scale. It’s possible that a clog will form during this descaling process. If it does, open up the top and use your pin again to poke the holes and see if you can dislodge any particles that may have become trapped.
For full cleaning, it’s a good idea to run two full reservoirs of half vinegar, half water. If your Keurig is still in good shape or you don’t have much time, a single full reservoir can work just fine.
Note:of its own, if you really want a brand-name product to work with. White vinegar, however, is cheaper and easier to find. Also, the Keurig solution uses citric acid as its active ingredient, and there are some complaints that the smell and taste linger past their welcome. There are also a number of other Keurig cleaning products on the market, like “cleaning cups” and “rinse pods.” We don’t recommend any of them, because vinegar can get the job done much more cheaply.
Step 4: Wash out the vinegar with water
You don’t want that vinegar to stay in the Keurig, so fill the reservoir back up with fresh water and run through a full container again to flush it all out. Make sure it passes the smell test when it’s done. No smell, no problem. Once this is finished, your Keurig performance should be improved, and scale problems should have literally dissipated.
It’s a good idea to repeat this type of cleaning on a consistent basis, especially if your Keurig sees a lot of action. Depending on your water source, Keurig recommends descaling your machine at least once every three to six months. Remember that hard water is more likely to cause problems than soft water. If you have scale issues, you may want to stay away from tap water and use filtered water or bottled water instead.
Bonus tip: Replace your filter cartridge
Some Keurig models come with water filters that are part of the water reservoir. If your Keurig has one of these filters, then you will need to occasionally replace the cartridge, about every 60 tanks or so. These filters can improve taste, but they can also help make clogs and other problems less likely.
You can make even more of a difference by switching to bottled or fully filtered water instead of filling the reservoir with tap water (also a good idea if your unit has no filter). However, this might be a more expensive option.