Which Keurig to Buy? The Complete Keurig Buying Guide

Personal coffee making machines are popular for their quick and convenient usage. Keurig brewers are famous in the coffee machines market. Often it is the first choice consumers make, especially for single cup coffee maker.

When browsing coffee maker models, connoisseurs are often overwhelmed by the amount of models Keurig has. Making a clear choice can feel impossible, but a close comparison between models reveals underlining similarities.

This guide has been compiled by us to help you compare between different Keurig models. After reading this, you will find it easier to pick the machine that is suited for your needs.

Which Keurig to Buy

Best for Home UseKeurig K55 Coffee MakerBuyFromAmazon
Best for Office UseKeurig K145 OfficePRO Coffee MakerBuyFromAmazon
Best for Small SpaceKeurig K-Mini K15 Coffee MakerBuyFromAmazon

Keurig K55 Coffee Maker – Best for Home Use

Keurig K55 Coffee Maker
Keurig K55 Coffee Maker

The reason behind this machine’s success is its simplicity. The straightforward usage and lack of distracting buttons and knobs make this machine a joy to use.

The Keurig K55 coffee maker performs only one function and performs it well: making an extraordinary beverage. Single button usage and fast operation puts this model ahead of other more complicated but slower models.

The affordable price combined with a top quality cup of coffee gives this model an excellent reputation. Consumers love many things about this machine! If you search on the internet for this model, you will discover enthusiastic reviews. The affordability combined with high quality cups of coffee have contributed to this amazing reputation. To add further quality, Keurig has added a 1 year warranty for this particular model.

Here is a list of features for Keurig K55:

Highlighted features

  • The K55 is capable of making a variety of different beverages. From tea to coffee, hot chocolate, specialized drinks and even iced drinks.
  • This machine has multiple brewing sizes: 6, 8 and 10 ounces.
  • The K55 is a joy to use. All you have to do is lift the lever, pop in the flavor K-cup you desire, push the lever back down, and choose your brewing size.
  • Once the power button is pressed, the Keurig K55 begins to preheat. This serves the purpose of speeding up the brewing process, ensuring that your coffee is steamy hot and delicious each and every time. This model is renowned for brewing your beverage of choice in a minute or less.
  • This model features a 48 ounce water reservoir, which translates to 8 cups of your favorite beverage before requiring a refill. You won’t have to guess when the K55 is running low in water, there is an add water indicator. The removable design of water reservoir maks refilling and cleaning a true joy. No need to bring the entire machine into the sink when you can just remove the reservoir and easily pop it back into the machine.
  • This model features an easily programmable automatic off switch. When the Keurig is not in use for a certain period of time, it shuts off automatically.
  • Multiple Indicator lights inform the barista of what function the machine is performing at any given time. The lights at the top of the K55 are labeled: Add Water, Descale, Heating, Auto Off, and Power.
  • An easy-to-remove drip tray sets the way for easy cleaning. All the user has to do is gently pull the tray out of the body of the machine and run it under tap water. It is also possible to remove the tray to accommodate bigger glasses.
  • The Keurig K55 can use My K-Cup reusable coffee filters. This particular filter allows the user to brew their ideal coffee beans instead of being stuck with pre-packaged K-Cups. This feature allows for better usability and fresher cups of coffee!

User Opinions

Of all reviewers, 82% gave this coffee machine a 4 out of 5 star rating on Amazon. This is a great indicator of how satisfied people are with the K55.

One of the frequently mentioned benefits of this unit is the ease of use and overall simplicity in design. Home baristas love the option to pop in a K-Cup and have their favorite beverage in a snap of a finger.

Users mentioned how much they enjoyed the freedom of using the my K-Cup filter to brew any coffee variety they like.

The K55 preheats relatively quickly, being ready to use soon after the machine is powered on.

The build quality of this unit is exceptional, with the handle feeling sturdy as it moves to puncture the K-Cup.

People truly love the affordable price especially when compared to similar machines in its class.

Many users voice their appreciation for the spacious and removable water reservoir. They don’t worried about running out of water, a feature that especially comes in handy in households with multiple baristas. Because it is removable, all you have to do is walk over to your sink and fill it to capacity. Inferior units would require putting the entire unit in the sink to fill the water reservoir.


This eloquent yet sturdy machine is a pinnacle in design, featuring lighting fast brewing times and reliability. Appliance Savvy happily endorses the Keurig K55.

In this price range, this Keurig model beats all its opponents! The large and removable reservoir and quick usage alone makes it worth purchasing. We have been loyal Keurig customers for many years. With great faith we can say it truly is capable of everything we could ask for and more. When shopping for your next coffee maker, you would be wise to consider the Keurig K55!

>>> Read the customer reviews of Keurig K55 Coffee Maker

Keurig K145 OfficePRO Coffee Maker – Best for Office Use

Keurig K145 Coffee Maker
Keurig K145 Coffee Maker

The Keurig K145 is suggested for users who appreciate the “getting used to” of single-cup machines as well as the ease of use and variability that comes along with it.

Below you will learn about all the areas the K145 covers, where it can do better, and who the ideal customer would be.


Like the previous model reviewed, the Keurig K145 also comes with a removable water reservoir. This makes it easy to refill and clean when necessary. Its capacity is 48 Oz. It fits perfectly into the unit, preventing outside dust and particle accumulation. The best part of this feature is the “Drain Brewer” button, allowing you to drain all the water so you can add fresh water.

The drop tray at the bottom of the machine is also easily removable, preventing annoying and time wasting spillage.

The K145 gets high scores for easy cleaning and maintenance.


Keurig revolutionized the coffee world with Flavored K-Cups. The K145 fits standard K-Cups, leaving the barista with hundreds of flavors to look forward to. This variety even features multiple options for tea and lemonade. there is truly something for everyone, not just coffee! Multiple beverage choices via a single machine. Amazing, right?

Further versatility is seen in the multiple cup sizes: 6 Oz. , 8 Oz. , and 10 Oz. Taste also differs among sizes. For seasoned coffee lovers, 8 Oz. features the perfect taste, but at 10 Oz. the coffee has been reported by some users to taste a little weak. With that said, you are free to experiment with multiple flavors and sizes before you find the option that is right for you. You even get a free trial pack of K-Cups with your patronage to Keurig!

It literally takes less than minute to brew a fresh cup. The built-in water reservoir further reduces the time it takes for consecutive cups.

The Keurig K145 suits the efficient American in office.

Built to Stand the Test of Time

The K145 has a heavier and better built housing, making it 2 lbs heavier than the K45. The internal pump is more powerful, reducing the brewing time comparatively. In addition, the heavy-duty power cable adds to its efficiency.

This unit was designed for a small restaurant or office in mind, making it relatively low maintenance and durable.

A frequently voiced complaint is the noise. Given the environment it is typically used in, it does not feature the Quit Brew Technology. This means it could reach loud noise levels. However, it is loudest in the first minute and bearable after that. Even at its loudest, it is still more quite than other kitchen appliances such as a mixer.

Importantly, this model is not compatible with My K-Cup. For baristas who require ground coffee, you are advised to look at other units.


If you prefer single cup coffee and desire an easy hassle free experience, then look no further than the Keurig K145 OfficePRO. It would most definitely be worthwhile to have on your countertop or office space. It is sturdy and doesn’t require much maintenance or cleaning. The design promotes usage of different sizes or flavors (tea and lemonade among others) and delivers reliable taste day in and out.

We would suggest this model over the Keurig K45 due to the features and positive user experience at a relatively higher cost. On the other hand, if your preference is ground coffee and My K-cup, then it is recommended you purchase the K45.

For users who like to begin their day with a steaming hot cup of coffee, the Keurig 2.0 offers programmable settings and would be the preferred machine.

>>> Read the customer reviews of Keurig K145 OfficePRO Coffee Maker

Keurig K-Mini K15 Coffee Maker – Best for Small Space

Keurig K15 Coffee Maker
Keurig K15 Coffee Maker


The Keurig K15  is considered the most cost effective and small K-cup machine. The Mini is 10.8 inches tall and 6.9 inches wide, making it simple to move around. The dimensions make it ideal for people with limited counter-top space. While it doesn’t have carafe capability like the K20 model, the K15 fits all regular K-cups (with and without Keurig brand) and lets you make use of your own ground coffee. The design promotes simple usage, all you have to do is flip open the plastic lid located at the top of the reservoir. Then you use a cup to fill it, pick a K-cup flavor and push the brew button.

This single-use reservoir isn’t suited for everyone. The K15 requires a little time to warm up for each beverage you make. If you are a person who drinks lots of coffee, you would definitely want to spend a little more on a model that can brew multiple cups at once. A model like the K55 would suit you better, as it only needs to heat the water once to brew several cups consecutively.


The unit operation is kept simple. All you have to do is lift the lid off the reservoir, pour in the necessary amount of water and close the lid. Once the handle is lifted, water will begin to pour into the brewer. Once you have waited for all the water to drain, place your favorite K-cup into the holder and shut the handle. Push the Brew button (it will flash blue to notify you). Give the machine approximately 90 seconds to heat the water up and only an additional 20 seconds to dispense the beverage. The total time from brewing to drinking ranges averages about 2 minutes.

The K15 was designed with a single-use reservoir which requires filling for each cup of coffee you desire. This is a feature I did not enjoy at first, but I realized later this is an advantage. It ensures the water is fresh, an important variable when brewing quality coffee. Adding fresh water to the machine couldn’t be any easier. Fill your cup with fresh water, lift the lid and pour it into the machine. The reservoir is even located at the top of the unit for added convenience.

Unlike the other Keurig models mentioned above, the K15 doesn’t have buttons that are designed solely for each cup size. However, there are measurements in the water reservoir that show how much water to add for your desired beverage size. 6,8, or 10 ounces are available. Just add the water and let it reach the appropriate fill level and you’re in business! Simple and effective.

This machine fits all regular K-cups and is also compatible with My K-cup reusable filters. The removable drip tray means it also fits larger mugs.

Customer Service and Maintenance

The Keurig K15 comes with a limited one-year warranty that covers typical home usage. In order to keep your K15 in functional shape, it is suggested you clean the external parts of the brewer regularly. You should descale the unit every 3 ~ 6 months. Luckily, all you must do is detach the brew head which comes off with the click of a button. Customer service is just a phone call away, and is available 7 days a week at 866-901-BREW (866-901-2739).

>>> Read the customer reviews of Keurig K-Mini K15 Coffee Maker

Features to Consider When You Choose Keurig Models

It can be hard to keep all the different important features in mind when deciding between models. Here is a list that will get you going. Keep in mind your own unique needs when comparing models. These mainly apply to the K-Cup Brewing System models, are also suitable to other models as well.

Where the Machine Will Be Used

Most Keurig models are labeled UL and suggested for Household use only. If you plan on using the machine in an office, commercial building or some dorms you would benefit from a brewer that is listed for commercial use. Read on to learn more about why UL labels matter when choosing a single cup coffee maker.

Machine Size

If you have a tiny counter, you are most likely worried about the amount of space each machine will take up. Another concern might be if it will fit properly under upper cabinets. You can always set up a dedicated brewing station in or near the kitchen. You will find more suggestions and ideas here or on out Coffee Organizers Pinterest board.

Cup Size

Certain machines brew only a single cup size, while other models allow you to choose between 4-12 ounces per cup. Just keep in the back of your mind, the more water you use the milder the taste will be.

Brew Time

Most Keurigs typically only need a minute or less to heat up water from the reservoir and begin brewing. The Mini plus (without a water reservoir) can take 2-3 minutes. This is still much faster than other typical coffee brewing methods. When you add water, it is advised you use water that is room temperature. Otherwise, the wait for your favorite warm beverage will be longer.

Reservoir Build and Size

The Mini plus has a water tank that fits one cup of coffee. This means you must refill the machine each time you use it. The other models have removable reservoirs that makes it easier for you to fill it in your sink. The capacity for these tanks range from 40 to 80 ounces. These models also keep hot water ready for the quickest brewing and dispensing for other purposes.

Hot Water Dispensing

All Keurig Models have the capability of producing hot water for tea, hot chocolate or even instant oatmeal, etc. Some models allow access to this capability better than others. If this is a function that you place a lot of emphasis on, be sure to choose a machine with a hot water button.

Drip Tray

A drip tray is handy for cleaning spills and is typically day to remove. Removing the tray or turning it over usually allows for brewing of taller mugs (like a travel mug).

My K-Cup Usability

Not every machine is suitable for use with the My K-Cup filter (or other similar reusable filters). None of the 2.0 machines or commercial machines do ( the K155 is the exception). If you prefer to use K-Cup, then any Keurig model would best suit you. If you prefer to use your own grind, then the Mini Plus, Elite or OfficePro Premiere (which is also suited for home use).

Quiet Brew Feature

Most models have a feature called Quite Brew technology. This allows for quite coffee making. The only two models that don’t are the K10 Mini Plus and the OfficePro, so these machines are comparatively louder.

Energy Saving

Typical Keurig models have a feature that powers off automatically in 90 seconds after brewing is finished. The OfficePro has an auto shut off after 2 hours.

Programmable Feature

If you look forward to a steaming hot cup of coffee every morning, you can easily program certain models to be ready when you are.

Water Feed Plumbing Kit

The B150 and B155 models feature an optional plumbing kit that allows you to attach a water line to feed the water tank. This saves time and prevents trips to the sink. Do not forget that the B155 was also built for home use.

Water Filtering

You have the option of a water filter that can eliminate distracting tastes if present in your water.