11 Common Coffee Drinker Complaints About Keurig

In 1998, Keurig first introduced its brewer and pods to offices, significantly changing the speed at which people could make coffee at work. Simply grab a K-Cup pod, pop it in the machine, press the brew button, and in about a minute or less, the coffee is ready to enjoy. The invention took off, making its way far beyond the office space now and into 40 million homes as of 2024, per Keurig.

Despite its success, there never fails to be a group of naysayers. In this case, they have a variety of issues with Keurig. Some of the biggest complaints against the company include its lack of environmental responsibility due to pod waste, poor coffee flavor, and waning quality across the brand's product line. Now, this isn't to say Keurig hasn't taken some steps in the right direction, but if online threads and user reviews are any indication, there's still significant room for improvement.

Keurig has come to be known as a pioneer of quick, convenient coffee. For those who just need a caffeine fix, a single K-Cup of java may help them survive the workday. However, many Keurig users have expressed their disappointment in what they view as less-than-appetizing coffee. A substantial number of Reddit users complain that the coffee just tastes off, comparing the flavor to "dirty water." Others have also critiqued Keurig coffee as having a plastic flavor. There are several possible causes for these off flavors.

When it comes to the weak or watery coffee issue, some believe it's a result of the low volume of grounds in each K-Cup. Others attribute the weak flavor to the fact that, by design, the coffee in K-Cups is pre-ground. As soon as coffee is ground, it begins to lose freshness and, in turn, flavor — despite K-Cups' special packaging to preserve freshness through nitrogen flushing. Currently, there isn't enough research to fully support the claim that plastic is released into coffee during brewing.

While flavor may be one of the most important factors to evaluate before purchasing a coffee maker, other considerations — such as ease of use, size, and design — also play a part. With that in mind, one design flaw that a number of Keurig users have critiqued is its loud, vibrating sounds that occur during the brew cycle. One Redditor posted a video essentially teasing the brand by overlaying their voice as their Keurig brewed a cup of coffee mimicking the sounds of the machine. Many commenters chimed, comparing it to the sound of "throat-singing" and "Gollum."

In the support section of Keurig's website, the company simply attributes the "different noises" to be normal "as the coffee maker heats and pumps water." However, according to several third party troubleshooting websites, there may be a machine malfunction causing the brewer to be excessively noisy. It seems Keurig has begun to address the complaints, as some people have noted the newer models are quieter than previous versions.

From Starbucks and Peet's Coffee to the Original Donut Shop and Green Mountain varieties (which happens to be the brand behind Costco's Kirkland Signature K-cups), there's no denying that K-Cups come in a wide range of flavors, roast levels, and coffee brands. But despite the many single-serve pod options, a number of Keurig consumers critique the brand's K-Cups for tasting all too similar. A Facebook post titled, "Do most K-cups taste the same?" had a number of commenters agreeing that they've noticed their pod coffee has noticeably similar flavor profiles. They also pale in comparison to coffee made with non-single serve coffee makers such as French press or Moka pots.

Possible reasons for this "pod" or "Keurig" flavor could be from the actual Keurig machine rather than the K-Cup itself. Keurig's website notes the importance of keeping a regular maintenance routine to ensure your coffee tastes its best. With regimens including water filter replacements, following descaling Keurig protocol and daily cleaning measures, these changes could be solutions to possibly enhance your coffee cup. There are additional measures users can take such as purchasing rinse pods to use in between different types of K-Cups to reduce the risk of any residual flavors from previous pods carrying over to the new pods.

Though cleaning is a requirement for manual and automated coffee makers across the board, Keurig users complain that upkeep is more intense in order to get consistent results. A number of commenters on Reddit have noted the need to descale their machines more frequently than is recommended by the user manual and often much sooner than seeing the descale light activate just in order to get a better taste. In addition, there have been a number of news reports warning users of mold build-up commonly found in single serve coffee makers like Keurig.

The reason Keurig, as well as many coffee makers, can have mold and bacteria if you don't clean them often enough is tied to the wet and dark environment that which allows bacteria to thrive. That being said, there are ways to keep the mold at bay by routinely cleaning your coffee maker. Keurig's spokeswoman told The Huffington Post that she recommends descaling Keurig machines every three to six months to keep the brewer "free of buildup." As a perk, many commenters on the Reddit have reported a better taste after routinely cleaning their machines.

It's no secret that Keurig's received years of flack for contributing to the environmental impact of single-use coffee pods, which are estimated to generate 576,000 metric tons of plastic waste around the world annually, per a study in Packing Technology and Science. Many concerned citizens chimed in stating the pods create a lot of waste due to the disposable plastic cups. A number of Facebook posts and Reddit threads harped on the fact that single-use pods have created so much waste, leading them to opt for alternative coffee making methods. Give A Shift About Nature went in on Keurig on Facebook pointing out the company's failure to follow through in creating recyclable pods by 2020, ending the point with "it's 2026."

This is not to say that Keurig has done nothing to try to make the pods more environmentally friendly. In fact, in 2020 the company began making the pods from polypropylene (#5 plastic), which is technically recyclable instead of non-recyclable plastic #7. However, this effort has been somewhat overlooked due to the fact that separating the components of the pod and finding a local recycling center that accepts the pod are very difficult. In fact, there was a lawsuit against Keurig in 2021 for its label declaration that K-Cups are recyclable. The settlement ended up siding with the consumer as the cups are not recyclable in many communities. The company now has language on its products stating the K-Cups are not recycled in many communities.

Inconsistency has become a frequent complaint amongst Keurig owners. People on various threads have noted the lack of consistency between brews despite using the same daily settings. Yikes, that's not great. One Reddit user posted a side-by-side photo of two identical mugs with a significant volume difference, even though each was supposed to be an 8-ounce cup. Beyond this, some Keurig brewers have also received complaints against the varying brew strengths and uneven extractions as the coffee is dispensed.

Keurig's official site provides an FAQ section that addresses these issues — most of which can be troubleshooted by properly cleaning the exit needle. So there is some user error going on there. Poor extraction can also be caused by mineral build up from your water source, and sometimes just switching to a softer water in your machine can fix things as well as running a plain water cycle. Who knew?

Across customer reviews and social threads, there's a slew of gripes about the many malfunctions people have experienced with their Keurig machines. And it's not just one or two: The same handful of issues continue to come up and have for a number of years. Perhaps one of the most frustrating issues people run into is having their machines appear to turn on yet refuse to actually brew any coffee. Electrical issues also seem to be a common thread with many noting their machines have error messages, lights flashing, buttons not responding, or even machines emitting a burning smell or even smoking in more extreme cases. The list goes on with additional complaints of nozzle and water tank leakage or pump problems, which could be linked to internal issues.

Additionally, there are a number of third-party websites dedicated to single-serve coffee machines with possible solutions dedicated to the most common Keurig malfunctions. The fix may be as simple as unplugging the machine or clearing a clogged needle. And, of course, one of the best things you can do is to keep the machine in good condition by regularly cleaning it and using a clean filter or filtered water to prevent hard water buildup. But on the other end of the spectrum, there are some things that aren't attributed to user error and can't be fixed as easily.

The high price tag on Keurig machines and single-serve capsules used to be viewed as well worth it in exchange for the convenience of quick coffee. In recent years, however, there's been a number of Keurig customers countering that the products and pods are not providing the value they once had. And it's not just the machines users are hating on, but the K-Cup prices, too. Keurig owners constantly bring up the fact that the single-serve capsules are expensive and add up quickly, especially when compared to the price of making drip coffee at home.

You can't expect convenience to come for free, but there is the argument that the pod's packaging and convenience increase the price tag per cup of coffee. The breakdown of a cup of coffee comes out to be $0.75 per serving, whereas a cup from a specialty coffee roaster can run from $0.50 to $0.60 per cup. In terms of the price tag for the brewers, machines on the Keurig website run roughly from $79.99 to $219.99. In comparison to drip coffee makers, the starting price point can be closer to $20 and run up to high end machines in the $200 or $300 range. The brewer cost in combination with the higher price per cup can add up, which can make some users question if the convenience is really worth the uptick.

If you've ever been to a coffee shop, it's likely you've been asked a series of questions about how you want your coffee, ranging from temperature and brew strength to sweetness and milk type. While most people can't quite expect this level of customization from your coffee machine at home, serious coffee drinkers gripe about the lack of features Keurig machines have. Many Keurig brewers don't have the ability to adjust brewing variables like temperature and brew strength, both of which can contribute to the quality of the final cup of coffee.

The most basic Keurig brewers have few buttons often including cup size ranging from 6 to 12 ounces and a big brew button. To their credit, some Keurig machines also have a "strong" option button on their machine, but it's up for debate whether or not people find it makes a significant difference. Newer machines are beginning to offer more custom features, such as multiple settings for temperature control and brew strength with WiFi connectivity to boot, but these are some of the brand's more expensive products.

Average drip coffee machines like a Keurig should typically last between four and five years (but that varies greatly), according to K-Pod Coffee. However, many Keurig users face the issue of their brewers dying after a short period of one to two years. Many commenters on Reddit agree, citing their need to repurchase a new machine every few years. Just a quick glance at the Trustpilot reviews and you can see some of the top reviews are filled with customer complaints sharing sagas of their recent machine failings after short usage, sometimes just a few months. Now, some of this may be due to users not maintaining their machines properly, but it is overall a widespread issue.

Power failures can be easy to troubleshoot in some cases, but in other instances, users are left to either replace, return, or just trash their machines. Though there are some loyal fans who are fine with the practice of purchasing a new Keurig machine on a regular basis, others complain that this frequent machine replacement indicates a reducing quality in Keurig products especially over the last few years, not to mention how wasteful the pattern is.

There are few things worse than reaching for your morning java to be surprised by a lukewarm sip–or worse–a cold surprise when you were prepared for something hot. Coffee enthusiasts often complain that their Keurig machines fail to brew hot coffee, and instead serve up lukewarm cups. Many posters have shared hacks to get their coffee up to an acceptable temperature by resorting to nuking their coffee or preheating their mug prior to brewing.

Reasons for this issue could be related to lack of maintenance or simply machine failure. According to Ifixit, when this question comes up, it could be related to having a water pump issue or the heating mechanism may have been shut off. Some of these problems could be solved by going through the descale process. But more serious issues, like broken pumps, may require a replacement or a new machine altogether.

To compile this list, I used my own knowledge and personal experience having reviewed a number of Keurig machines professionally. I also crosschecked my list of my complaints against the most common ones I found in forums, reviews, social threads, and the FAQ section of the official Keurig website.