Keurig Not Brewing Full Cup

Keurig Not Brewing Full Cup: 12 Common Problems & Solutions

Keurig not brewing full cup – Having a Keurig coffee maker is a terrific way to obtain your recommended daily intake of caffeine, but it may occasionally be annoying when your cup isn’t completely filled. 

The size of your water tank or reservoir is usually the cause of this problem because it must be fully filled in order for the full cup setting to function properly. There are a few other common causes and solutions that you can refer to in the CentralParkwestcafe article below.

Keurig Not Brewing Full Cup 1

Keurig not brewing full cup

Scale buildup, blocked needles, or unclean water valves may be at blame if your Keurig isn’t making a complete cup. If your system has been thoroughly cleaned, this may be the result of a software bug or an electrical component failure.

Before getting into the specifics, double-check that the auto shut-off option wasn’t used, since it might have stopped the machine mid-brew. Additionally, make sure the water reservoir is placed properly.

The reason that not brew a full cup

If your Keurig® is not making a complete cup, one of the following possibilities may apply:

  • Tea leaves, cocoa powder, or coffee grounds might jam the exit needle leading to keurig not pumping water. To remove any trapped particles, run a cleaning cycle using just water. Make it a habit to run a water-only brew after all tea and cocoa beans to avoid this from occurring again.
  • Descale your machine immediately. Every three to six months, you should descale your brewer with distilled white vinegar or this Keurig® descaling solution. Make sure to use filtered water in your brewer to prevent the accumulation of scale (never tap or distilled).
  • The brewing procedure included removing the water storage. Reattach the water storage to the device. After that, brew some purifying water just without using a K-cup® pod.
  • Your brew basket could be broken. You may get a free replacement brewer from Keurig® if your machine is less than a year old by calling them. There is a one-year warranty included with your coffee maker. If an issue does occur, you ought to use that coverage. Don’t panic; all you need is the unit’s serial number and not your receipt.

The “on the record” instructions are those. Hit the brewer off the record. Sometimes air bubbles get stuck in the tubing and stop the coffee from escaping. The air will travel more quickly with a slight jiggle, allowing the brewing process to continue. 

Our task is complete if we can save even one person from having to experience a horrible morning without coffee.

Some other common problems

Some other common problems

This is some trouble with you Keurig:

Coffee Pod is not seated properly

The coffee pod should be correctly inserted in the machine, therefore that is the first thing you should check. You will only get a half cup of coffee if the coffee pod is not properly put since the water will not flow properly.

The water reservoir is not full

There’s also a chance that the water tank isn’t full or that the sip size you choose is too little. The coffee maker won’t brew a complete cup of coffee if the water storage is not filled to the MAX line.

The brew size is too small

A reduced sip size will result in less coffee being produced by the machine. To achieve the full cup of coffee you want, choose the proper sip size.

Clogged needle

Your Keurig may not be functioning because the needle may be blocked. The coffee pod is pierced by the needle, allowing water to pass through and brew the coffee. You won’t receive a full cup of coffee if the needle is blocked since water will not be able to pass through it effectively.

The coffee filter is clogged

You’ll get less coffee as a consequence of the reduced water flow caused by a blocked coffee filter.

Wrong K-cup pack

K-cup packets come in several varieties, and using the incorrect one may provide less coffee than a full cup. For instance, certain K-cup packs are intended for iced coffee, therefore using one of these pods to make iced coffee won’t result in a complete cup of hot coffee.

Water line issue

If your coffee isn’t coming out hot enough, the water line may be faulty. You won’t receive a complete cup of coffee if the water line is broken since the coffee maker won’t work correctly.

Not enough coffee grounds

You will only receive a half cup of coffee if there aren’t enough coffee grounds in the filter to allow water to flow through smoothly.

Coffee grounds are too fine

After attempting the aforementioned solutions, if you’re still not obtaining a full cup of coffee, it’s likely that your coffee grinds are too fine. Too-fine coffee grounds might clog the filter and prevent the water from flowing freely.

The air is trapped

If your coffee maker isn’t functioning correctly, air buildup within the device may be the cause. This may occur if the device is not routinely used or if it has been sitting unused for a considerable amount of time.

Incorrect water amount

The quantity of coffee that is made may also vary if you don’t use enough water. To have a whole cup of coffee, you need to have the right amount of water and coffee. For the sip size you’ve chosen, make sure you’re using the appropriate quantity of water.

Scale build-up

Your coffee machine may develop scale buildup if you have hard water. Scale accumulation over time might limit water flow and result in a cup of coffee that isn’t quite full.

Keurig not making a full cup troubleshooting

Keurig not making a full cup troubleshooting

Clear Buildup Around The Water Tank Valve

Water from your tank must be allowed to flow freely into the device. The Keurig machine may be unable to take out enough water to make a complete cup if there is any mineral accumulation near the exit valve. Here’s how to diagnose and resolve this problem:

  • Step 1: Fill up the water tank. Take off the holder for the water filter.
  • Step 2: Overturn the reservoir. Use the spring to find the nozzle. Try pressing the spring down many times with anything dull, such as the eraser end of a pencil. You can rule out any problems with that item if it travels smoothly.
  • Step 3: Reinstall the tank on the device. Add two to three inches of water to it.
  • Step 4: Bring out the turkey baster. Take a little amount of water from the tank with you.
  • Step 5: Put the baster just where the water should come out of the tank—the top side of the black nozzle. Work your way around the nozzle two or three times by doing this repeatedly.

If you see any floating particles coming from the nozzle, the block was being caused by calcium buildup. In a measuring cup, run an 8 oz hot water cycle. The issue is resolved if the water volume is 8 oz.

Descale To Remove Internal Blocks

If you discovered calcium accumulation in your water tank, your machine probably has it as well. The water that is used to sip your K-cups leaves behind minerals that cause limescale to build up within your brewer. This accumulation may eventually become significant enough to result in obstructions that prevent your Keurig from producing a complete cup of coffee.

Even if you use a water filter, you should descale your plumbing every three to six months.

You should descale your brewer more often if your tap has “hard water,” which is water that includes a lot of minerals. You may purchase a cheap testing kit if you’re not sure whether your water is hard.

Keurig produces a descaling solution on its own that is compatible with all models. The non-odoring, secure composition works quickly to dissolve mineral buildup using mild citric acid. You may purchase the solution on its own or in a package with filters and rinse pods that will also aid in keeping your machine clean.

To descale your Keurig after you have the descaling solution, follow these instructions.

  1. You may need to repeat this operation at least twice. If you’ve owned your machine for more than six months and have never descaled it or if your water is really hard.
  2. Run an 8 oz hot water cycle into a measuring cup once you have descaled. You know why your Keurig was not making a complete cup if the water capacity is 8 oz.

Unclog The Needles

Unclog The Needles Keurig

Keurig needle obstruction that prevents it from producing a complete cup of coffee

There are needles inside the coffee maker that create two holes in the K-cup when you sip it. This enables the capsule to be filled with hot water. Coffee grinds that get trapped around the needle may ultimately dry up and become hard. 

This is more likely to occur if you don’t get rid of your brewing capsules right away. As a consequence, your Keurig’s water flow begins to get obstructed by the accumulation of ground coffee, which may prevent it from producing a complete cup of coffee.

Use the orange cleaning tool that comes with your brewer if you have a Keurig 2.0. The following paper clip technique may be used if you misplaced it or have a different model:

  • Step 1: Straighten a paper clip’s point on one end.
  • Step 2: Remove the water reservoir, disconnect the brewer, and turn the machine off.
  • Step 3: Grab the edges of the capsule holder and slowly take it away from the porter.
  • Step 4: To detach the holder from the housing, press the button on both sides. Hold the escape needle down while turning the holder over after pulling the lever to reveal it.
  • Step 5: Insert the needle’s straight end, and then repeatedly move it in a circle. The capsule holder should be washed with water and put away.
  • Step 6: The upper entry and exit needles may be seen by opening the handle and peering below. To clean, place a paper clip in each and wiggle them about.

In a measuring cup, run an 8 oz hot water cycle. You know why your Keurig wasn’t producing a whole cup of coffee if the water content is 8 oz.

Clear the Air

Another possible explanation for your cup not being full is that the pump is unable to prime correctly due to additional air that has been trapped within the appliance. All you can truly do in this situation is attempt different techniques for shaking the machine to release the air. 

In the future, if this continues to be an issue, be sure to refuel the aquifer before it runs out entirely.

Adjust Keurig cup size

Simply press the small cup button on a Keurig coffee maker to make a smaller cup or the big cup button to make a larger cup. The appropriate quantity of coffee for the specified cup size will be automatically dispensed by the machine.

Keurig porters are used to preparing single-serving coffee. In this way, the size of a Keurig cup is measured in ounces. You could be able to choose from three or five cup sizes, depending on the model. In cups that are 6, 8, 10, or 12 ounces, drip coffee may be brewed. 

Every Keurig coffee maker operates in the same manner. Sizes of Cup coffee beans range from 10 to 13 ounces, and each one holds around two teaspoons of coffee. The cup will be more filled but the coffee will be weaker as you add additional water.

The volume of the drink is lower but the strength of the beer is greater when less water is used. The majority of Keurig porters come with a seven-cup travel mug thanks to the detachable drip tray. 

You may make the second cup of coffee weaker by actually using the same K-Cup for two six-ounce cups of coffee. Despite the restrictions, beverages like hot chocolate and tea may be served in a 12oz cup.

FAQs of Keurig coffee machine

How do you make a bigger cup of coffee in a Keurig?

Answer: Keurig Extra Bold K-Cups make it easy to use your coffee maker to sip stronger coffee. Because they were created expressly for Keurig brewing, these K-Cups have a greater caffeine level.

Why is my not a Keurig brew the right amount?

Answer: There are a number of reasons why your Keurig may not be making enough coffee. You may have chosen a sip size that is too little or the coffee filter may be blocked. Insufficient water in the reservoir or scale buildup on the heating element may also prevent the machine from producing enough coffee.

How do you burp a Keurig?

Answer: Simply take out the water reservoir and depress the release valve to burp a Keurig. Any air bubbles will be able to escape in this way, keeping them out of your coffee.


We are hoping that these pointers of this “keurig not brewing full cup” article will enable you to use your Keurig to make a satisfying and delicious cup of coffee once more.

You should properly maintain your system if you don’t want to have this problem again in the future.

Regular cleaning and descaling (at least once every three to six months), as well as the use of filtered water, can assist you to avoid these problems in the future and extend the useful life of your beloved Keurig.

Follow CentralParkwestcafe for notification to the next post. Thank you very much!

Scores: 4.5 (68 votes)