Why Is Keurig not brewing a full cup? Learn how to fix it?

If you own a Keurig coffee machine, you will definitely be amused with its highly innovative technology, user-friendly interface, Unique features, convenience, and Simplicity.

But unfortunately, many Keurig machine owners won’t have a pleasant experience with the machine sooner or later. One of the most prominent issues that have been discussed globally on social media and coffee-related forums is Keurig not brewing a full cup.

This is really frustrating that you are craving your perfect shot of coffee, but Keurig wonts brew.

This problem can be caused by many different reasons, but fortunately, most of the problems aren’t complicated at all and you can solve them all by yourself.

So, in this article, I have complied with all possible reasons behind this issue and completed a troubleshooting solution guide to resolving the issue, so keep reading to learn how!

Why doesn’t Keurig Make Full Cup?

If your Keurig wonts brew a full cup, there is likely some blockage inside the machine, dirt, or missing component that is not letting the machine brew a full cup. Some problems interfere with machine performance and prevent the Keurig machine from brewing a full cup of coffee.

Before getting deeper into the reasons why Keurig won’t brew, first check machine parts or accessories that do not let the machine brew. As Keurig machines are specifically designed not to brew unless they are completed.  

Make sure that you didn’t set up the auto shut-off feature, as it might turn the machine off. If not, check whether the water reservoir is correctly installed or not!

There’s a magnet inside the machine; make sure it is not displaced from its original position. If both the magnet and water reservoirs are in the correct position, then the problem lies elsewhere.

Other Reasons Includes

  • Clogged needles (exit needles may be clogged by coffee grounds, tea, or cocoa mix).
  • Keurig machine need to be descale.
  • Buildup around the water tank value
  • Electrical fault
  • Faulty brew Basket.

How to fix Keurig not brewing a full cup?

Now, let’s look at troubleshooting solutions for a brewer that is not brewing a full cup of coffee.

1. Unclogg the Needles

The needle of your Keurig machines may be clogged by coffee grounds, tea, or cocoa mix, and that’s why it won’t brew a full cup.

If you know how to use the Keurig coffee machine, you must know that there are two needles inside the machine that makes holes in the pod. This allows the Hot water to pass through the capsule.

Over time, the coffee residue gets stuck to the needle and eventually becomes dry. This is more likely to happen when you don’t discard your pods right after you brew the coffee.

The coffee residue starts building up around the needle, resulting in Keurig not brewing a full cup of coffee. Clogging of the needle also causes the Keurig machine to shut off while brewing.

Therefore it is necessary to clean the needle to run the smooth functioning of your Keurig. If you own Keurig 2.0, you can use the original cleaning tool that comes with the Keurig machine. For other models, you can use the paper clip method.

  1. Turn Nespresso machine off, and remove the water reservoir(as the most model comes with a removable water tank)
  2. Tightly grab the edges of the pod holder and take it away from the Nespresso machine.
  3. Now, press the button on both sides to detach the holder. Pull the lever back to access the exit needle and hold it down while flipping the holder over.
  4. Insert the needle’s straight end and move it around in a circle a few times. Set the pod holder aside after rinsing it with water.
  5. To observe the top entry and exit needles, open the handle and look beneath. To clean, place a paper clip in each and move it around

2. Keurig machine need to be descale.

Calcium buildup inside the machine is one of the most prominent reasons Keurig is not brewing full cups.

As water used to brew the K-cup pod travel through the Keurig machine, it leaves mineral behind that is more likely in limescale buildup inside the machine.

If you won’t descale your machine, this buildup eventually results in a blockage that potentially does not let the machine brew a full cup.

According to coffee enthusiasts, you should descale your machine once in 3-6 months or after 300 cups of coffee, whatever will come first.

If you are using hard water containing a high mineral level, then you need to descale your machine more often. If you are unsure about the quality of water, we recommend you choose a cost-effective water tasting kit.

Keurig manufactures its own descaling solution that works for all Keurig models. This descaling solution has no odor and acts fast to remove mineral buildup with gentle citric acid. You can also choose a white vinegar solution to descale your Keurig machine.

Once you have a descaling solution, follow the manufacturer’s instructions to descale your Keurig machine.

If you haven’t descaled your Keurig for more than six months or are using hard water (recommended to use filtered water), then you need to run the descaling process at least twice.

3. Buildup around the water tank value

For smooth brewing, water must flow freely from the reservoir into the machine. If there’s some problem or blockage at the valve, then the machine cannot pull the required amount of water to brew the K-cup, eventually resulting in Keurig not being able to brew the full cup.

If you have encountered this problem, you can use these steps to clean the exit valve of the tank.

  1. empty the water tank and remove the water filter holder.
  2. Turn the reservoir over. Using the spring, locate the nozzle. Push the spring down. If it slides easily, you can rule out any problems with that component.
  3. Replace the tank on the machine. Fill the water(about halfway)
  4. Take out a turkey baster. Suck up some of the water in the tank.
  5. Immediately squirt the baster into the top side of the black nozzle, where the water should escape the tank. Repeat this process multiple times, going around the nozzle two or three times.

If you notice a small particle floating up from the nozzle, calcium buildup is responsible for blocking the value existing.

4. Electrical fault

If your brewer is clean and nothing is stuck inside the machine, then there might be a technical electrical fault that is not letting the Keurig brew a full cup of coffee.

 If the Keurig display is blank or doesn’t show as content as expected, then start by unplugging the Keurig, wait for some time, then plug the machine back. If this resolves the problem, then the issue was an electrical glitch. But if unfortunately, the problem is still there, then there might be something serious that needs attention.

5. Faulty brew Basket.

Sometimes, a faulty brew basket is the reason behind Keurig won’t brew full cups. If your brewer is less than one year old, contact Keurig, and they will send you a new one for free. A one-year warranty covers your Keurig coffee machine. If any issues occur, you should take advantage of that coverage. Don’t worry; you just need the serial number on the machine, not the receipt.

6. Reset the machine

If all the above-mentioned hacks didn’t work and the problem is still there, then the only ultimate solution before calling a professional technician is to reset your machine. The older Keurig model doesn’t have a proper reset button available, so in order to reset them, you need to follow these steps.

  • Turn off the machine.
  • Empty and remove the water reservoir,
  • Keep it disconnected for a few hours.
  • Once switched on, the machine would have returned to its normal condition, which hopefully resolved the Keurig won’t brew issue.

The Newer Keurig model has the proper method to reset the machine.

  • Simultaneously press and release the small and medium mug buttons.
  • Press the menu button three times immediately after that. You should see the time on the display.
  • If you press the menu button again, the clock will be reset to 0:00. Hold down the medium cup button. Press the menu button once while holding it down.
  • While holding the medium cup button, push and hold the tiny mug button, and then release both simultaneously.

Final Thought

I hope these hacks will definitely enable you to brew Keurig again! Suppose you want these issues not to happen again in the future. In that case, you should take proper care of your machine, regular maintenance and descaling (at least once in 3-6 months), and usage of filtered water; definitely avoid these issues in the future, and your beloved Keurig will serve you for a longer time.

frequently asked question

How do I unclog my Keurig?

Run a few cycles of plain water through your brewer. Fill the reservoir with water and leave out the K-Cup. Push the brew button and dump the resulting water. Your Keurig Mini should be thoroughly unclogged and ready to brew now.

Why does Keurig not brew a full cup after descaling?

If the ‘descale’ light is off, and the Keurig says it’s brewing, but no coffee is coming out of the dispenser, try resetting the machine’s circuit. To do so, unplug the machine and wait 15-20 minutes before connecting it back in.

other Keurig troubleshooting issues and solution