In a Nutshell:

The Keurig K155 Office Pro is expensive for a single-serve coffee maker but worth it for small to large office settings. The 90-oz water tank ensures a large capacity of coffee for multiple drinkers, and it brews in just under a minute.

Brew Quality
Customization options
Ease of Use

Overall Rating



  • Brews coffee in under a minute
  • Plenty of customization options
  • Can connect to the main water line
  • User-friendly
  • Affordable


  • Chemical smell/taste
  • No option to adjust coffee strength
  • Need to purchase plumb kit separately for water line connection
Keurig K155 OfficePRO Premier Brewing System

Recommended For: Small to large office settings. The 90-oz water tank ensures a large capacity of coffee for multiple drinkers, and it brews in just under a minute.

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When life gets hectic, there’s nothing that compares to that instant energy boost from coffee. The thing is, waiting in long lines at the cafe and spending money on your favorite drink every day adds up.

That’s why a coffee maker is a convenient and cost-effective solution. Today, we focus on a highly-rated model in our Keurig K155 review. It’s versatile, effortless, and brews in 60 seconds. Let’s look at what else it can do!

K155 Office Pro Keurig Design Overview

Keurig is well-known for revolutionizing the way people brew coffee. They debuted the K-Cup system in 1998, which features single-use pods of ground coffee.

These pods are the epitome of convenience. You basically pop a pod into the designated compartment in a Keurig machine, push a button, and your coffee is streaming into your cup in a heartbeat.

Clean-up is much easier, too, since you don’t have to deal with filters, spilled grounds, or stained coffee pots. A pod can only be used once and is then simply tossed into the trash. The Keurig machine is ready for the next pod immediately.

The Keurig K155 with a steel mug under its spout and removed drip tray

For diehard espresso drinkers, the art of brewing is enjoyed by using a semiautomatic or superautomatic. But for larger households or office settings where multiple people drink coffee, the Office Pro Keurig K155 is an excellent option.

An upgrade of the Keurig K150 model, Keurig listened to customer feedback to redesign and debut a streamlined commercial coffee pod machine with more versatility.

You get an interactive touchscreen, multiple language settings, and the ability to brew coffee, tea, cocoa, or even iced beverages. Best of all, it will make any drink in under a minute.

Another detail we love is how quietly it operates. That’s thanks to Keurig incorporating Noiseless Technology to make your coffee experience less jarring in the mornings.

Despite being made of silver plastic, the K155 holds up well against wear and tear. It’s a durable and lightweight machine at 14 x 10.38 x 13.8 inches and 6 pounds, meaning you can find a spot to squeeze it onto your counter, whether in an apartment or office.

We are always skeptical of plastic parts because they are notorious for breaking over time, but

Keurig K155 reviews confirm that this is a long-lasting machine with minimal mechanical complaints.

Keurig Office Pro K155 Features

Pod coffee makers are designed for ease of use, and the K155 doesn’t disappoint in this regard. It’s incredibly simple, with a few straightforward features that can be operated with the push of a button.

90-oz Water Tank

K155 Office Pro Keurig with a white mug under its spout

Commercial-grade coffee makers need to have a large reservoir or be able to connect to the main water line- luckily, the K155 does both.

For starters, 90-oz is well above average for a coffee machine. With this size, the K155 can brew up to 18 cups of coffee with a single refill.

The tank is even larger than many high-end superautomatics that cost thousands of dollars. A large tank means less time wasted refilling, which is perfect for a large household or small office setting.

For larger offices, you can connect the Keurig Office Pro K155 to the main water line, but the only downside is that you have to purchase a separate plumb kit to do it. Extra spending is never fun, but you’ll never have to deal with refills, which is a welcome convenience.

Touchscreen Interface

One of the joys of the K155 is how easy it is to use. That’s thanks to the full-color touchscreen LCD interface, where everything is controlled with the swipe of a finger.

Adjust your coffee preferences, including the amount of coffee, temperature, and set the On/Off preferences for those busy mornings when you run out the door and forget to shut down your machine.

Drain and Move Feature

Another reason why the Keurig K155 Office Pro is an office manager’s dream is the new drain and move feature, making portability a breeze.

It has a built-in drain to release excess water from the tank instantly. You can also remove the internal hot water tank for more efficient handling and storage.

If your office is relocating or you are a remote worker who lives on the road, this is a handy function to make transportation smoother.

Keurig K155 Brewing System

The biggest selling point of the K155 is that it can brew a drink in under 60 seconds. That’s crucial when you have a big family and everyone needs to get out the door in the morning.

The package includes a 12 Count K-Cup variety box, but you can also choose from over 500 different pods, including coffee, tea, specialties, and iced beverages.

Choose from several preferences to brew your drink just the way you like it. There are four brew sizes, including 4-oz, 6-oz, 8-oz, and 10-oz.

The temperature ranges between 188° F and 198° F, giving you full freedom to experiment. This is especially helpful for serving multiple coffee drinkers, as the temperature is often the “make it or break it” for a quality cup of joe.

The brewing is simple. There’s no measuring, grinding, or tamping involved. Every ingredient is contained inside a neat little pod.

While this is less messy and more convenient, you do not have control over the strength of your coffee, which can be considered a big drawback since everyone has different preferences.

But if you love that caffeine boost, you may find yourself having to brew more than one cup with a Keurig to get your fix.

Several K155 Keurig reviews have also mentioned that users experienced a metallic, plastic taste, most likely due to being fresh out of the box.

Some reviews shared one method to get rid of it by thoroughly cleansing the machine before the first time it’s used, which we will discuss in the next section.

Keurig K155 Office Pro Setup & Operation

Before brewing your first drink with the Keurig K155, the system needs proper cleansing.

The Keurig K155 Office Pro with separated water tank and brewer

Start by removing the coffee machine from the box and setting it up on a flat surface next to a power source.

Remove the water tank and rinse it under the tap. Some reviews have mentioned filling the reservoir with hot water and distilled white vinegar and letting it sit until the water cools, then cleaning the reservoir using dish soap and cool water. This may help get rid of that plastic smell and taste.

Fill the tank with water to the fill line and snap it into place on the Keurig K155 OfficePro Premier. The machine will automatically start heating the water. While it heats, place a mug on the drip tray under the spout.

Next, hit the brew button to initiate a cleansing brew (note that you do not place a coffee pod in the machine yet). It will flush water throughout the system to thoroughly cleanse it before first-time use.

Once the cleansing cycle is complete, you’re ready to brew coffee. Choose a K-cup from the bonus pack included with the machine, pop it into the pod compartment, and adjust your brew preferences. Your coffee is done in under a minute!

Keurig K155 OfficePro Premier Cleaning Process

To keep your Keurig in tip-top shape for years to come, regular maintenance and descaling are necessary.

Keurig K155 Coffee Maker with coffee dripping from its spout into a white cup

Fortunately, some parts are removable and can be cleaned in the dishwasher, but you’ll have to disassemble and reassemble each time, which can be confusing to learn at first.

Never immerse the brewer and external housing in water. Instead, wipe these parts down with a damp cloth.

As mentioned above, you can automatically flush the internal parts with water by hitting the Brew button to remove any loose grounds.

The drip tray holds up to 12 oz of liquid before it needs to be removed and dumped. You can rinse it out under the faucet, but do not wash it in the dishwasher.

You’ll also need to clean the tiny “needle” part, which can get clogged with coffee grounds. This can be cleaned by pushing an unfolded paper clip into the tube to clear out debris.

Descaling the Keurig K155 coffee maker is an important step that must be done every 3 to 6 months.

Unfortunately, the K155 doesn’t come with its own water tank filter, but you can use distilled water instead of tap water.

Tap water is packed with minerals that build up over time and damage parts. It also affects the taste of your coffee- and not in a good way.

Distilled water is pure and fresh, which ensures a full-bodied coffee experience. It can also help cut down on descaling since there are no pesky minerals to worry about.

Keurig Coffee Maker K155 Pros vs. Cons


  • Brews coffee in under a minute
  • Plenty of customization options
  • Can connect to the main water line
  • User friendly
  • Affordable


  • Chemical smell/taste
  • No option to adjust the coffee strength
  • Need to purchase the plumb kit separately for the water line connection

The Keurig coffee maker K155 is a delight for anyone wanting a fast java fix without having to measure out ground coffee.

This machine is heavy-duty, built to last, and produces a large number of drinks to satisfy the entire office.

It arrives at your doorstep equipped with a 12-pack of K-cups to get the fun started. From there, operating the machine is easy peasy.

The color touchscreen is intuitive and clear, and everything can be controlled from here without messing with a bunch of buttons.

We love that you can customize the temperatures and amounts– although you can’t choose your preferred coffee strength.

And brewing is not limited to coffee. Tea, iced beverages, and cocoa are also on the menu with the K155, so you’ll never feel limited.

The compact and lightweight design makes it effortless to transport, plus you can drain the water tank and store it with ease just for this purpose.

The K155 is far from the traditional espresso maker, but the quality is above average for those who like their coffee fast and easy.

Bear in mind that regular maintenance is crucial, which you’ll have to do manually. This can be tedious, but if you wipe down the housing after each use and fill the tank with filtered water, it’ll help make those deep clean sessions bearable.

We recommend the Keurig K155 Office Pro coffee maker for…

  • Large households with multiple coffee drinkers
  • Small to large offices
  • Casual coffee drinkers who prioritize convenience over coffee quality

Keurig K155 Office Pro Warranty

Keurig offers a Limited 1-Year Warranty from the date of purchase. You can read the fine print here.

Comparable Products

If the Keurig Commercial K155 doesn’t align with your coffee goals, there are plenty of other single-serve pod coffee makers to consider. We’ve listed a few that share a similar feature set to the K155.

Keurig K145 OfficePRO Brewing System

Recommended For: Home and (very) small office use. It has essentially all of the same advanced technology as the K155.

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For a smaller model that has essentially all of the same advanced technology as the K155, the Keurig K145 Office pro brewing system is an excellent choice for home use. It features a 48-oz water tank, 3 cup sizes to choose from, and a sleek design compatible with any type of K-Cup.

Cuisinart SS-10P1 Premium Single-Serve Coffeemaker

Recommended For: Small offices, and it comes with a charcoal filter to ensure the purest water for your coffee.

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This quality single-serve coffee maker is compatible with K-Cups and offers the same convenience for half the price. It has a 72-oz water tank, making it suitable for small offices, and it comes with a charcoal filter to ensure the purest water for your coffee.

Keurig K-Elite Coffee Maker

Recommended For: Small offices and users who want the ability to adjust brew strength at a more affordable price.

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This commercial-size coffee maker costs considerably less than the K155 but offers more variety, including the ability to adjust the strength of your brew. It comes with a sizeable 75-oz water tank and hot water on demand for tea.

Keurig K155 Review Conclusion

The Keurig Office Pro Premier K155 is your answer to fast and delicious coffee without any of the measuring or prep work.

The colorful touchscreen interface makes this incredibly easy to use, and the instant drain function is helpful for when you have to move and store the device quickly.

To conclude this Keurig K155 review, this is suitable for large households with multiple coffee drinkers and small to large office settings. Thanks to the 90-oz water tank, the K155 can produce up to 18 cups of coffee before a refill is necessary.

Official Manufacturer Support

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