Keurig K-Duo Review, Single Serve Coffee Maker (Detailed Guide & Review)

Coffee is the need of the world and people rely on it to gain energy to kickstart the day with excited brain cells. The advanced coffee maker would create more gladdening and mouth refreshing coffee and for you, we have the Keurig K-Duo, the highly rated coffee maker. We have thoroughly reviewed and rigorously tested it against its building material, ultimate programming, and brewing time.

As selecting the appliance for personal use is daunting but you have landed on the right place to level up the routine. It is a quality item and yields bold and superlative cups of coffee in a go. Surprisingly, it is a brilliant coffee maker as it is operated by one button.

While reviewing we have uncovered many fascinating facts about it which will stun any coffee lover around the globe. Not one but it can whip up coffee by using both ground coffee and pods in separate compartments.

It has triumphed the race due to its dual functional mode and intuitive features. You may find hundreds of coffee makers but no one would match its level and can not bring an enjoyable taste to the coffee. It offers more flexible timings to make it comfortable for you to take coffee at the time you crave for.

For straight 24 hours, it can brew strong, rich, fluffy, and golden brown coffee and still fascinates the morning joy with an instant shot. It has a very sleek and side by side unique structure that takes the spotlight and lets you create your masterpiece. Let your inner barista come out and make magical drinks.

If you adore coffee a lot then it is for sure the best and right option for you. Below, we have mentioned an in detail and in depth review of Keurig K Duo features, design, performance, and more. Keep your eye on the following points that will make your mind clear about it:

Keurig K-Duo Review, Single Serve Coffee Maker:

I have been an expert and have reviewed uncountable kitchen types of equipment. I find remarkable tools and spread the word with the world to help them reach the comfortably usable machine for their use.

Keurig K-Duo Review
Credit Keurig

Last week, Keurig K Duo Coffee Maker stand out like a moonlight out of 5 other machines and is not just good at working but is a highly rated coffee maker now.

The reason why I have suggested this coffee maker are many as I personally tried and approved them. At first, to check its efficacy I prepared drip coffee in it by adding my favourite coffee grounds, I enjoyed live drip coffee at my kitchen counter and the taste was mesmerizing and soothing.

Not a single grain of powder was left useless and it extracted the least possible flavour it. I made 8 cups in one batch and when I removed the carafe while the process was still in progress it automatically turned to pause mode which was very impressive.

Keurig K Cup Pods
Credit Keurig

Then I used K cup Pods and used caramel flavor and I am not able to code the flavor and nice aroma in words. My whole kitchen was blooming with the intense and mouthwatering scent of coffee.

Brewing Coffee in Keurig K-Duo
Credit Keurig

Its water reservoir was pretty big and came out and slide in easily, by holding 60 ounces of water in an instant it can last for a whole day. Lastly, it was quite new to me that its pod compartment can be used for coffee powder so I loaded the ground beans in the small removable container that was enough to brew a single shot. And it took the lead to be number one as the single serving of coffee is ingenious.

Water Reservoir Keurig K-Duo
Credit Keurig

It can help those who have very busy routines and need to save time to meet tiring schedules. The coffeeholic people can make it a pro choice to match the exact taste desired every day.

Design and Build up:

Keurig K-Duo coffee maker have a very eye opening and lavish design that depicts premium craftsmanship for a pleasing look. It has a black finish that makes the counter and kitchen feel different and has stainless steel adornments.

It has a very large capacity to robust around 12 cups of wow factor coffees and has around 13 pounds of weight but is slim enough to sit and suit any kitchen. It has built with two separate parts with the right hand and left-hand side.

The right-hand side is to use any k cup pod line or ground coffee for a single serving while the left-hand side is to brew the coffee of your choice by dripping it. On the espresso side, it has an adjustable, removable, and super comfortable cup tray. You can place it on the higher or lower notches that just depend on your desired cup size.

Brew what you prefer either an espresso shot or a large travel mug. The storage bin that is installed in it can hold around 20 capsules at once. It has a super slick, intuitive, and stylish user interface and has buttons to select the likeable type of drip coffee or a rich espresso shot.

The adequate convenience is achieved by the delay brewing mode that can set up the time as per your need, the keep warm setting that keeps the coffee warm for hours and you can also put it in the cleaning phase.

It also comes with an easy-to-operate drip-stop function by the help of which you can slide the lever to pause while the process of brewing is still running. It is the true face of a slick machine that offers practicality, efficient results, and comfortable working to have a cup of coffee for a mind-blowing start.

Design and Build up Keurig K-Duo
Credit Keurig

Brew Options:

It allows you to take full control over the coffee and have a brew traditional drip style coffee on its left. It can set the mug from light, medium to strong flavor by suggesting to leisurely use 3 different brew options.

It takes a few steps to do so, first flip the lid that is placed on the top, it will reveal a brew basket in which you can add the coffee grounds, and the shower screen is displayed on its head. Just touch the button and choose a normal and strong brew to match your taste.

This machine is so smart that it would even give the rich to select the optional brew options to make the coffee taste best. After selecting all the options, the brewing begins. If we take a look on the right side then there is an option to add capsules to brew the espresso you have in mind. Brew single shots of bold espresso as it delivers single servings.

It is as simple as before, all you need is to open the lid and add the espresso capsules to delight the taste of mouth goblets. A variety of options to select from including normal and strong espresso. After this press the start button and see the magic of this machine and how intensely it prepares robust coffee in a few seconds.

Brew Option Keurig K-Duo
Credit Keurig

Its brew options are different and depend on the k cup pod and can make more concentrated shots as is the trait of a smart coffee gadget. The purpose of more concentration is that if it is used for iced coffee that includes ice so When ice is added it masks the taste but not if you brew it from this machine as it is genius enough to deliver the original taste. It is really an important factor to note that it can work with any K cup pods even with reusable pods.

Brew Size:

Keurig K-Duo coffee maker can brew coffee for you depending on your desire. The capacity of this coffee maker varies and you don’t need to run multiple cycles of brewing to make coffee for many people. It can brew a single shot of espresso for you and at the same time this machine can also prepare other types of coffee such as cappuccino.

The capacity of the water reservoir is 12 standard cups and also the coffee holder has large storage. So, you can brew a full carafe that contains coffee for 12 cups and it can also brew a single serving cup.

If you are using the classic rich option of this coffee making gadget or over ice option, then you get a variety of sizes range for the drip side of the Keurig K-Duo coffee maker.

The brewing size ranges from normal cup size, traveling size, large, and extra large cup. The normal cup size is 8 to 10 ounces, travel size is 12 to 18 ounces while extra large cup size is at a range of 12 ounces.

The brew of coffee in the carafe also can be altered according to the demand and number of people. You can brew a carafe in a range of 1/2, 1/4, and 3/4 measuring sizes.

Brew Size Keurig K-Duo
Credit keurig

You can also place different sizes and shaped cups as the drip tray is removable and can adjust large cups without any hesitation. The normal brew capacity of this coffee making equipment is from 7 ounces to 60 ounces.

This range is enough to brew coffee for a large gathering and also can be used for single serving at home or offices. You can also control the strength of your coffee from mild to strong range.

To amaze the experience of people with its taste, the strengthening of coffee merely depends on the taste of the operator or the one for whom it is being brewed. The brew size for cold coffee also includes the measurement of ice cubes within the cup.

Ease of Use:

The Keurig K-Duo is a very agreeable and convenient coffee brewing machine that with its smartly controlled main board eases the layman in brewing. The inborn terminal of this machine aids in the easy usage of the machine even for beginners.

There is a bar in the central line that displays the advancement of the brewing process. You get a smart small and perfectly sized scoop that helps in the coffee powder measurement without the requirement of a measuring scale. The taste and the consistency of the coffee remain the same and improved with experience due to the same amount of coffee measurement every time with its scoop.

Measuring Scoop and Scale Keurig K-Duo

During the process of pouring coffee in the cups from the carafe, its nozzle is designed to ignore the spilling of coffee on the table and keeps you from the extra effort of cleaning. The functions of both the side including drip and espresso side are easy to use and have descaling and cleaning measures.

There is a holder that can be opened to place the cup during brewing and it can also get folded to brew coffee in a carafe. Thus, it aids in using both types of flasks for brewing coffee. The drip tray keeps the bottom clean from coffee spills and is removable.

It can be easily cleaned and washed under tap water to keep the machine free of dirt. this machine only takes 20 seconds to pour a brewed coffee into your cup and requires no manual effort.

Removeable Drip Tray Keurig K-Duo
Credit Keurig

The water reservoir is easily refilled and replaced after the shortage of water. An indicator specifies if the water in the tank is low. In this single machine, you can brew cappuccino, espresso, latte, and cold coffee. Only the Keurig K-Duo coffee brewing device provides so much ease along with the diversity of brewing in a single machine for experienced and beginners.

Coffee Quality:

The fear of coffee brewing at home is getting a watery coffee with no actual taste or smell. But this fear of brewing coffee is pleasingly kicked out by the exceptional technology used in Keurig K-Duo Espresso and Coffee Barista System.

This Keurig K-Duo is verified by SCA, which verifies the machine that brews the coffee correctly. The temperature of the water that emerges from the nozzle of this machine ranges from 195F to 200F. This is the optimum temperature for coffee and is characterized by SCA.

The brewed coffee temperature should be lukewarm and to maintain this temperature in the cup, Keurig K-Duo pre infuse and then brew the coffee. It also pauses the brewing in a pattern to ensure the temperature in a range of  178 F. This is the unique feature of Keurig K-Duo compared to its competitors.

Coffee Quality Keurig K-Duo
Credit Keurig

The strength of the coffee can be controlled by switching the mode of brewing to espresso brewing and an extra caffeine boost amplifies the coffee. This machine can brew the coffee with your favorite espresso capsule and ultra flavorful espresso will produce silky flat and smooth cream.

The brewing pressure also influences the quality of the coffee, so by altering the pressure of brewing, one can get good quality coffee. The optimum pressure with good frothing gets you a homemade coffee with a restaurant taste.

The grounded coffee powder gets filtered water from the water reservoir and it is cleaned with a charcoal based filter. Heavy particles which alter the taste of coffee and unnecessary mineral in the water are filtered out and clean water at high temperature brews the coffee grains.

If you want to have a coffee after some time or you get urgent work, you can delay the brewing and get a hot coffee on return. The delay button on the control panel manages this function with a single touch on it.

Additional Convenient Characteristics:

Despite offering the matchless and beneficial factors for a perfect mug of coffee it has some more features that add to its work to provide blooming shots. These utmost traits in this machine are:

24 Hours Brew:

A feature to get gratified from, it is not found in many hyped coffee machines but it is engineered differently to support the users. It offers a flexible time period to set the hearty coffee at any time of the day. No worries if you are late or want the coffee in the noon it can delay the brew to freshen your mood and boost the energy at the right time.

On its drip side, it has an unbelievable preset that can brew the coffee at certain durations. The time adjustment settings are as easy as twisting the knob placed in the center. The knob is very stable and does not come out of its place but turns smoothly without getting stuck at any point. All you have to do is to select the coffee size and brew the machine will handle the later process without bothering.

Timer Keurig K-Duo
Credit Keurig

Warming Setting:

The drip side is real time magic and better than a coffee shop from where if you buy coffee it gets cold soon but it has something different to supply. It comes with an automatic warming setting that shifts to auto warm mode when the coffee is prepared.

Not one but for straight two hours the coffee is going to stay hot and fresh with the same aroma. It can also be adjusted for ease. And here is the twist and an errorless part where the automatic pause and pour function begins. If the process is disturbed then it will pause and start from where it has left for constant and quick pots of coffee.

Value For Money:

The main purpose of a kitchen gadget is to provide convenience to the customer. Some machines require hand grinding of the coffee beans and the operator gets tired of grinding beans before getting a cup of coffee.

This is tiresome and makes most people uncomfortable and that’s the reason why people prefer to get a coffee from a restaurant. A coffee machine should ease the experience of its operator. The Keurig K-Duo is one of the best machines that has unique brewing features and comes in a very reasonable range.

By buying this machine, you don’t need to buy a separate water filter plant, as it filters water in its reservoir. In this budget, you get a large capacity water reservoir, carafe, drip tray, espresso, and coffee barista nozzle.

Water Filter Keurig K-Duo
Credit Keurig

You don’t need to buy a carafe or storage mug separately as it comes with the accessories of the Keurig K-Duo machine. Buying separate accessories with a coffee machine is not economic and is not recommended as the cost of accessories and a coffee machine makes it very expensive as compared to the Keurig K-Duo machine which comes with accessories.

Keurig K-Duo is also a certified machine, with spill free carafe, drip bottom tray, and a cup holding rack. All these innate accessories and features make the Keurig K-Duo one of the best quality coffee producer products in this range of money.

Moreover, there are brands in which the water reservoir doesn’t filter water, and the accessories are fixed which makes it difficult to clean the machine thoroughly. The efficiency of the machine reduces if it is not cleaned after every use and thus the durability and longevity are also affected. In the end, such a cheap machine gets heavy on the pocket of the customers.

Cup Holding Rack Keurig K-Duo
Credit Keurig K-Duo

Cleaning and Maintenance:

Keurig K Duo cleaning feels like a cozy wind as it becomes new as before by following simple steps. As we have discussed above that it has two sides for dual functions so these can be cleaned separately.

If you have prepared the latter then to attain better and uniform coffee pots make sure to remove the filter basket, filter basket drawer, and mesh tone filter. No requirement to thoroughly wash them and increase the load just rinse them and dry them properly.

Drying the parts is vital as it will help the coffee powder to set without getting wet that not only disturb the taste but also wastes a lot of time. Without any count whether it’s a half carafe or full once you finish the coffee it needs to be cleaned along with the lid. It is performed to avoid any contaminants and work in hygienic conditions.

Cleaning Keurig K-Duo
Credit Keurig

Now, let’s talk about the single serve k cup side here the cleaning duration is a bit shorter in contrast to the other side. As this side mostly uses pods which does not create any drippings and mess so all you need to do is to remove the used pods and use a damp cloth or water to clean the k cup pod holder.

Maintenance Keurig K-Duo
Credit Keurig

A notable point here is to be a little careful a do not harshly wipe to prevent contact with sharp and pointed needles. An important key point that will help you avoid thorough cleaning is to regularly empty and change the water in the reservoir, remove the drippings in the drip tray, and use a paper clip to remove the entrance and exit of needles. The inside of the coffee maker cleans on its own due to the installation of a cleansing function.

Cleaning and Maintenance Keurig K-Duo
Credit Keurig

Pros and Cons of Keurig K-Duo:


  • It is a coffee maker with less footprint to sit in small spaces.
  • It has dual programs for full pot and single serving.
  • It indicates when the water tank is running low on water.
  • It blinks the light on the size being brewed.
  • It has a flexible option of K cups.
  • The automatic pause feature stops brewing when the carafe is pulled out.
  • It allows you to have a strongly brewed cup of coffee.
  • It can prepare a variety of brew sizes.
  • The programmable characteristic is to set the automatic brew mode.
  • It has smart button controls on the top that are operated by one press.
  • It is easy to work with this machine.
  • The single serving side can easily accommodate the large travel mugs.
  • The system once turned on warms up very swiftly.


  • The location of the water reservoir is not on the front.
  • It has fewer smart controls in comparison to other models.
  • It lacks a frother to steam milk.
  • The carafe may leak if dropped a few times.
  • It does not brew exactly 12 cups but around 10.5 to 11 cups.
  • It does not have any temperature control setting.

The Advantages:

Being a highly rated coffee maker it has earned this title as a lot of people have liked its working. Some of the advantages that make it the best choice include:

  • The narrow body can fit in the cabinets and even holds less space than two separate machines. It is an additional point as you can comfortably place it in the available space.
  • The automatic pause and pour function is flawless and delivers the true meaning of technology. When the carafe is removed it pauses the system but once it is placed again it starts the cycle from where it left before. The glass carafe is big to make around 12 cups in one run.
  • No limitation on K cup pods and it can even use reusable pods to cut down the work.

The Disadvantages:

Despite holding a lot of positive points, it does have some negative points which are:

  • It lacks some creative and useful attributes like temperature control which is a flaw.
  • The water reservoir is very nicely built but its location is a little problematic as it is on the back of the unit. So, while the process if the tank is low in water then it needs to be turned off and spin the machine to remove the reservoir.


Category Keurig K Duo Coffee Maker
Dimensions DxWxH 12.76 x 10.94 x 12.92 Inches
Capacity 60 Fluid Ounces
Weight 13.2 Pounds
Color Black, Silver
Material Plastic
Brew Size 6, 8, 10, and 12
Finish Type Black
Operation Mode Automatic
Heating Feature Yes
Coffee Type Single Serve and Carafe Brewing
Smart Start Yes
Special Feature Programmable
Pause and Pour Yes
Energy Efficient Yes
High Altitude Setting Yes
Warranty 1 Year
Cord Length 39 Inches
Strength Control Yes (Normal and Strong)
Travel Mug Yes (8 inches Tall)
Dishwasher Safe No
Wattage 1470 Watts

Frequently Asked Questions

What is the best coffee maker for home use?

A coffee maker is a tool that brews or makes coffee using electrical power without the need for conventional stoves for the warming of water and milk. It makes coffee in a variety of different ways and several coffees are made with a single machine. You can boost the strength of the coffee according to your desire and it gives you an effortless cup of coffee in your home or office. Let discuss what is the best coffee maker for home use.

  • Multiple Brewing Options:

A coffee machine costs you a good amount of money. So, it should be a versatile coffee machine that prepares many different types of coffee. Keurig K-Duo coffee maker has the function of multiple coffee brewing as it can brew espresso, cappuccino, and other types of coffee. You can prepare any of your desired coffee in this single machine and don’t need to spend money on buying two or three different machines for different flavors.

  • Brewing Capacity and Size:

The brewing capacity of the coffee making equipment should vary in its range and brew different serving sizes. A single serving cup ranges from 6 to 7 ounces and a carafe ranges from 50 to 60 ounces. The machine should be able to brew count in both ranges and keep the quality of coffee up to the mark.

  • Strength Adjuster:

Different people like different strengths of coffee. Some like mild caffeine and some like strong. So, to satisfy both types of people, there should be an option to control the coffee strength according to one’s needs. Keurig K-Duo has an option of classic and rich strength and can brew coffee according to the desire of the person.

So, the Keurig K-Duo coffee maker has all the features that a good coffee machine should have. Thus, it is the best coffee creator that one can have at a very reasonable price.

Can you get both a hot and a cold coffee in the Keurig K-Duo coffee maker?

Both cold and hot coffee are popular among people in all regions of the world. So, the Keurig K-Duo coffee maker comes with a unique combination of hot and cold coffee brewing technology. With this technology, one can brew any type of coffee mentioned above. But both have different accessories and conditions for brewing. Let’s discuss if can you get a hot and a cold coffee in the Keurig K-Duo coffee making machine.

  • Hot Coffee Dripping Nozzle

The temperature of the water that passes from the coffee powder is adjusted to the optimum temperature to get the whole powder mixed completely at an elevated temperature. Also, it aids in no requirement of adding hot water, just add frothed milk for taste and have a strengthened cup of coffee in no time.

  • Cold Coffee:

The temperature of the coffee poured into the cup as it brews is in a range of 60 to 70C. This temperature is much higher than normal room temperature. So, people add ice cubes in a cup or carafe before placing them under the dripping shower of the coffee machine. The slow dripping of coffee and the ice cubes make it cold and you can enjoy a cold coffee using the same coffee machine.

  • Temperature Regulator and Delayer:

Sometimes, while brewing coffee we get urgent work and can take coffee after some time. To deal with such situations, Keurig K-Duo has given its machine the option of delay. By pressing the delay, the machine brews coffee after the calculated time. In this way, we can have freshly prepared coffee, and the temperature of the coffee is maintained by the machine itself for quite a long time.

So, we have seen that the Keurig K-Duo coffee machine has all the features that cold and hot coffee requires for brewing. You can brew both types of coffee with this coffee machine.


Keurig K Duo Coffee Maker is a top notch single cup and full pot machine to please coffee lovers. It is able to deliver the convenience of drip coffee along with pod brewing power all built under one compact gadget. It has a large water tank and thermal glass carafe with properly labeled measurements to brew the same amount. It can create high end cafe style coffee in a few seconds. From its looks to its brewing ability, each point has a standard. It might have some little flaws like temperature settings, and frother but it still creates great coffee.

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