Essentially synonymous with single-serve brewing machines, the Keurig brand is best known for pioneering the first-ever coffee-pod brewer. Their intuitive design revolutionized the coffee maker market irreversibly and provided coffee lovers the possibility of brewing the perfect coffee in record time. It was also thanks to this innovative new brewing system that at-home baristas gained the opportunity to concoct a wide variety of delicious cups of coffee minus all the tedious shaking, mixing, and measuring. Simply visit your local grocery store, grab a box of K-Cups, and you’re ready to prep that perfect brew.
Needless to say, the Keurig brand has come out with a range of single-serve brewing machines to match every unique preference. In this review, we’re taking a closer, more in-depth look at one of the most prominent commercial units from the brand. We hope that our Keurig K155 review will be able to help any of our readers who are considering purchasing it as it is an excellent coffee machine that has an excellent reputation amongst coffee drinkers and just keeps on increasing in popularity.
As Keurig knows everyone coffee preference is different, they don’t only offer a wealth of coffee flavors, they also provide buyers a range of machines similar to the K155. At a glance, you might think that the Keurig k150 and the K150P variant aren’t any different from the newer Keurig K155 but there are subtle differences that make the K155 the better option.
The K150P and K150 share a similar silhouette to the K155 and save for a few minor changes with the 150 models’ black dispenser hood, and you’ve got what looks like an exact replica of the K155. Dissecting performance is when the differences between these three models start to show. The first thing you’ll notice is that the K155 only offers 4 different volumes for its brew output, as opposed to the two other models that can produce up to 12 ounces of coffee in a single brew. Of course, it would be convenient to be able to produce that much cuppa with a single go, but because the Keurig machines work extremely quickly, there’s no real harm in simply brewing a second cup with the K155 if you find that the maximum 10 ounces aren’t enough.
Another thing is that out of all the Keurig machines on the market right now, the Keurig k155 is the only one that accepts the third-party K-cups that vastly increase the number of flavors available. This, and the newer technology in its heating system is essentially what gives the machine its higher price point than the K150 but it is also the biggest advantage of the k155 too. Providing users more flavor options, the K155 doesn’t limit your selection the brand’s existing line of pods that tend to be more expensive than the third-party options while also increasing the selection available drastically.
Both the K150P and the K150 can be hooked up to a water line, but only the former comes with the accessories needed to connect the machine. In essence, that’s what raises the K150P’s price over its K150 version. Nonetheless, the K150 can be connected to your plumbing – at the added expense of the after-sales purchase.
Although the K155 can be connected to your plumbing, its warranty may be considered void should the machine be linked to a water line. All that said, choosing between the two devices all boils down to one decision – whether you prefer the opportunity to choose from a broader range of flavors, or whether you believe the convenience of direct plumbing supersedes a wider pod selection.
The Keurig K155 – Basic Specifications
The Keurig k155 comes from the brand’s Commercial Brewer System Series. Designed for use in office spaces, waiting rooms, doctor’s clinics, and similar spaces, this solo-cup brewer boasts similar features to the robust K150 and K150P, albeit coming at a slightly lower cost.
- Dimensions: 14 x 10.4 x 13.8 inches
- Weight: 6 pounds
- Color: Matte silver and black with chrome accents
- Reservoir capacity: 90 ounces
- Warranty: 12 months
- Color LCD touchscreen interface
- Adjustable temperature
- 4, 6, 8, 10 ounce brew output
- English, Spanish, and French languages available
- Time display
- Quiet brew system
- Drain function for transport and storage
- Removable drip tray
- Compatible with K Cups from Keurig and other brands
Coffee Maker Performance and Functionality
The Keurig K155 OfficePRO Single-Cup Commercial Coffee Maker has been designed to brew excellent cups of coffee for everyone in your office all throughout the day. The sleek machine touts a 90-ounce water reservoir that can brew up to 18 cups of coffee before a necessary water refill. The machine provides users the option to choose the volume of their blend which can be set at 4, 6, 8, or 10 ounces through the machine’s interface.
Because preferences vary, the machine also lets you select your desired temperature setting for your coffee too. The machine lets users set their coffee temperature between 188°F and 198°F, accessible through the easy to use brewing control touchscreen system. On top of this, to give you even more options for the perfect cup of coffee, the K155 accepts hundreds of flavors of different a box of K-Cups from over 75 different brands, giving you and your workmates endless brewing opportunities instead of just a single pot of a basic coffee.
Designed for a super silent operation to minimize disruption to the office when making a cup of coffee and with the Keurig K155 boasts a brewing time of less than a minute, each cup of coffee – regardless of your chosen brew amount – can be blended to perfection extremely quickly without disrupting your co-workers. That means there’s no need to stand around the machine and wait for it to finish up your cup, so office work can ensue with little between each brew.
Aside from coffee, the Keurig k155 can whip up excellent cups of tea as well as delicious hot chocolate among other types of drinks. And unlike its K150 predecessor, this model lets you use K-Cups from any other brand that manufactures the pods rather than just a select few. This means that the sky really is the limit in terms of the variety you can get out of the K155 making it the obvious option due to there being so many different K-Cup flavors available these days.
While all of that is well and good, the machine does have a few performance downsides worth mentioning. For starters, despite being designed for commercial use like in waiting rooms or offices, this Keurig coffee maker can’t be hooked up to your water line straight out of the box but this is common at this price point in the market. If you’re interested in connecting the machine to your line, you’ll have to purchase a plumbing kit after the initial purchase that can increase the cost. That said though, the Keurig plumbing kit tends to be cheaper than that of the competition anyway while offering a wider range of coffee from the K-Cup range.
Another thing worth pointing out is the fact that while you can connect the K155 to a water line via a plumb kit, doing so may void your warranty. Now, if your office pantry sees a lot of comings and goings, then refilling that reservoir might turn into a chore but most officer usually have a coffee rota anyway and whoever turn it is to make the coffee that week will simply top the water up when required.
User Interface and Control System
Operating the nifty k155 is exceptionally easy and one of the easiest systems we have seen to date, thanks to the intuitive LCD touchscreen interface that basically serves you all the information you need at a glance and makes the process as user-friendly as possible. The screen can be found on the machine’s front panel, and essentially serves the purpose of the main controls. Aside from the touchscreen, the only other control you’ll need is the power switch so anyway can easily use the k155 even with zero prior experience.
Turning the machine on initiates the first step of the brewing process – heating the water. Once the reservoir reaches the ideal temperature – which takes around 60 seconds – you can basically get to brewing. The screen shows all the information you need to create the perfect cup of coffee – from water level, to brew temperature.
In case the machine runs into any errors or hiccups, the display should also show you what’s causing the issue. Most often, you’ll read errors concerning the reservoir, such as water flow interruption and insufficient supply. In these cases, troubleshooting should be no problem and are usually extremely easy to fix even with minimal knowledge of the machine.
Most often, if you do encounter an error, you’ll have to reset the machine by removing the water tank that only takes a couple of seconds. For any water flow issues or clogging, you can start off by running the brewing cycle without any K Cups installed into the machine. Running the process with just water should clean out the internal workings and get your coffee maker to function without a hitch.
Simple and straightforward, even newbies to the Keurig brand should find the k155 incredibly easy to understand and operate. If anything, it would have been nice to be able to select a single language for the display. By default, the touchscreen will show options in English, Spanish, and French. Of course, it’s not going to affect performance. But it would have been nice to see just the language you need to relieve the screen’s cluttered look but you can select a primary language in less than a minute via the easy to follow settings menu.
Build Quality and Design
When it comes to aesthetics, the K155 comes out as the king. The sleek, sophisticated aesthetic makes it both a functional and decorative addition to an office pantry. Clean lines and sharp edges give the machine that classy, high-tech look and feel that’s definitely attention-grabbing. Chrome-plated accents on the mug platform and just above the dispenser reinforce the machine and add to its countertop appeal. The matte silver finish lends sharp sophistication at a glance but feels cheap to the touch. Altogether, the 6-pound machine is relatively lightweight, thanks to its reinforced plastic encasement which may betray that high-end aesthetic when you step closer to interact with the machine.
In terms of durability and build quality, the k155 doesn’t fall short of expectations. Despite being made mostly of plastic, the machine stands up well against wear and tear. The finish on the plastic exterior isn’t prone to scuffing or stains, making the coffee maker especially easy to clean. The streamlined body is relatively free of nooks and crannies where grime and mold might accumulate. The removable drip tray makes sanitation even simpler and offers users the opportunity to position taller cups or mugs underneath the dispenser.
If anything, the chrome plating is what makes maintenance a little more challenging since they’re prone to hard water stains. While these cosmetic issues won’t impact performance, some users might find that it takes away from the machine’s overall aesthetic. Another thing to consider about the K155’s build is how it might impact the initial taste. Using reinforced, heat-resistant plastic – even for some of its interior parts – the K155 might lend a slight plastic flavor to your brew during those first few uses. Performing a preliminary cleaning should relieve the aftertaste when you finally pop a K Cup into the machine.
Frequently Asked Questions About the Keurig K155
We always see a large number of people reaching out with various pre-sale questions about the Keurig k155 so we have decided to answer the most frequently asked ones below. Our hop is that we will be able to help any of our readers who have these same questions and are considering purchasing the Keurig k155.
Can I use the Keurig K155 Office PRO Commercial Coffee Maker at home?
Absolutely. What sets the Keurig home models apart from the work models is the UL commercial certification that the K155 coffee makers – along with the other office models – have. Essentially, this means that the K155 was engineered for demanding conditions where constant brewing might be necessary.
While the household units also have UL certification, their Household Only accreditation means that the machines were designed to withstand moderate usage and gentle care typically encountered in household settings. All that said, yes, you can definitely use the K155 at home, especially if you find yourself brewing a cup of coffee more often than the average household.
Can I use the Keurig K155 in an office with over a hundred workers?
Not quite. As one of the Keurig Commercial Coffee Makers on the more affordable end of the cost range, the K155 was designed with smaller offices in mind – and its reservoir should shed light on that fact.
The 90-ounce water capacity means you can easily and efficiently brew anywhere from 10 to 18 cups of coffee on a single full tank. For that reason, the K155 makes the ideal corporate companion if you’re buying the machine for an office space with more or less 15 workers.
If you were looking for a Keurig machine that’s a little more robust, the K-3500 should be better suited to your needs. Engineered for those demanding office space conditions, this machine can brew hundreds of cups in a day without worry of breaking down.
What kind of water should I put in my K155?
The quality of the water you use for your K155 will determine the extent of effort you need to put into cleaning it. Using unfiltered tap water can cause debris and minerals to accumulate in the system, which will call for routine cleaning and descaling. If you’re using any water other than filtered, bottled water, then you may need to descale your brewer at least once every 3 to 6 months.
Mineral water in particular can be detrimental to the performance of your coffee machine. For that reason, you might want to consider using filtered water for all of your brewing needs. Keep in mind though – even using the cleanest kind of water you can find won’t eliminate the need to descale since all types of water will contain minerals to some extent.
How can I descale my Keurig K155?
Scour the web, and you’ll find a host of cleaning methods that claim to help clean out the mineral deposits in a Keurig. While some of them might work, it pays to look into your coffee machine’s fine print. According to the manufacturer, descaling any of their machines with anything other than Keurig brand descaling solution will inevitably void the warranty.
If your coffee maker is still under its warranty, it would be ideal to use Keurig’s descaling solution to keep your coverage intact. But if you’re past the warranty period, then you can go ahead and give those household solutions a try. Keep in mind though that home descaling method that use ingredients like vinegar and citric acid can alter the taste of your brew, and may cause damage to your machine.
What happens if I don’t descale my machine?
When you add water to your system and start the brewing process, a heating element brings the reservoir to the ideal temperature. When this element makes contact with the water as it reaches maximum heat, chemical reactions with the minerals and debris in the water cause them to calcify against the element. This creates a crystal-like calcium that clings to the internal parts of the machine.
Over time, the accumulation of calcified deposits can dampen the heating power of your machine. In effect, you won’t be able to maximize the flavor of the coffee that you pop into the maker. Even worse, these calcified minerals can dislodge from the heating element and travel with the water as it passes through the system during the brewing process.
When the minerals are trapped in the system, they can accumulate and block water from flowing through your machine. This late-stage problem may require rigorous descaling, or may even call for the help of Keurig customer support.
Pros of the Keurig K155
- The large 90-ounce water reservoir can serve up to 18 cups of coffee
- Option to choose the amount of coffee you want to brew
- Temperature controls let you dial down or crank up the heat
- Sleek exterior minimizes nooks and crannies for easy cleaning
- The removable drip tray can accommodate up to 8 ounces of spills
- Sleek exterior lends a decorative touch to the worthy countertop addition
- The touchscreen interface is user-friendly and intuitive
- Lightweight design lets you move, transport, and store the machine with little effort
- Quiet brew technology lets you make a cup of coffee without interrupting the office
- Small coffee machine footprint can fit most countertops without eating too much space
- UL Commercial Certification promises premium engineering that’s designed to withstand the demanding conditions of commercial use
- Reinforced plastic encasement works well to resist scuffing and stains
Cons of the Keurig K155
- Connecting to a plumbing line voids the warranty
- The slight plastic taste may infuse with the brew during the first few cycles
- Chrome-plated parts are prone to hard water stains
- Can only be descaled with Keurig brand cleanser
- Cheap plastic feel
- Displays English, Spanish, and French by default
The Verdict – Is the Keurig K155 Worth It?
The Keurig k155 has its fair share of both high and low points. What really makes it a stand-out machine is the fact that it accepts a broad range of K Cup variants from over 75 brands – giving you the widest selection of brews for unending flavors to enjoy and explore. Its easy operation, intuitive user interface, sleek aesthetics, durable build, and almost instant brewing time make it a dream to use in any office space.
While it can’t be linked to a plumbing line – which is possibly its biggest blunder – the 90-ounce water tank that it comes equipped with can be more than enough to satisfy your small office’s caffeine needs. Even then, once you’re past the warranty period, you can definitely hook the machine up to your plumbing by purchasing a separate kit for the job.
Other minor flaws include the machine’s plastic taste that can be washed away after the first few brews. But altogether, there isn’t really a downside that you might think of as a deal-breaker, considering the fact that most of its cons are minor at best.
Now – the big question to end this Keurig K155 review – is it worth the price-tag? In our opinion – yes it is. While you can’t hook the machine up to a water line without voiding your warranty, what the K155 really brings to the table is its extensive variety of acceptable K Cups. Taking any K Cup or clone, this coffee machine can serve up more than just your everyday cuppa, and that makes it worthy of its price.