Product Review of the Keurig K-Duo Coffee Maker

The Keurig K-Duo Coffee Maker*

Considering I recommended Black Rifle Coffee as a top-five gift for Veterans, I should probably do a review of the Keurig K-Cup Duo coffee maker too!  This Carafe/Single-Serve coffee maker offers options to use both ground coffee and K-Cup pods available in your favorite varieties.

* As an Amazon Associate I earn from qualifying purchases.


The Keurig K-Duo was straightforward to set up right out of the box. I just placed it on my cabinet, plugged it in, and it was ready to go. After washing the carafe and reservoir, it was effortless to run water through both sides to clean the internal components before using it for coffee. The design is aesthetically pleasing, in my opinion, and has a sleek look I have come to expect from Keurig.

The Keurig K-Duo has two brewing options: single-serve and drip-maker capable of brewing up to 12 cups of your preferred beverage. The device features seven buttons; two used to choose between single-cup or carafe mode, four buttons to select between brew sizes of six, eight, ten, or twelve (ounces for single-serve and cups for a carafe.) Finally, a single button to begin the brewing process. The large, 60oz water reservoir is on the back of the machine.

Get yours here! 


I would say this coffee maker falls into the mid-range as pricing goes. The Keurig K-Duo is a little more expensive than its competitors. The price is too high, considering that the features are not super-advanced, and it lacks options such as temperature control and advanced programmability. But, the price is still reasonable, especially for those people who enjoy the ability to use K-Cups and yet have the option of using coffee grounds.

Right now, you can buy the Keurig K-Duo in a couple of different places. However, there are also a couple of different versions, so be warned. For example, Walmart sells a non-programmable version called the Keurig K-Duo Essentials, while the K-Duo (the model featured in this review) sells on Amazon but is programable. Overall, the price-to-value ratio is ok, but not great.


In terms of performance, the single-serve brewing time is a little slower than others, taking 2-3 minutes to brew a 12oz cup. The carafe side performed on par with other machines, taking about 10 minutes to brew a 12-cup pot.

Flavorwise, I use a variety of K-Cup flavors, and the Keurig K-Duo brews them quite well. As expected, however, the larger the brew volume, the weaker the flavor. This problem is remedied quite well with the “Strong” button option in the single-serve option and adding more grounds on the carafe side. This model does not have a temperature control option, but my tests showed the water reaching about 180 degrees (F).
The Keurig K-Duo is no louder than any other similar machine I have owned, but they recommended that you descale the device every three months. The machine is not that difficult to clean, but it does require cleaning more often than its competitors, which is an unfortunate inconvenience.

Keurig K-Duo FEATURES – 80/100

I have discussed many of these in my previous comments, but I will list the features here in bullet format for simplicity’s sake.

  • 60 ounce Removable Water Reservoir shared between the single-serve and carafe side.
  • Compatible with K-Cups and Ground Coffee.
  • Strong Brew Option allows for a more robust single cup.
  • Multiple Brew Sizes allow you to brew a six, eight, ten, or twelve-cup carafe, or a six, eight, ten, or twelve-ounce cup.
  • Energy-Efficient heating plate with Auto-Off feature to keep your coffee hot in the included 12-Cup glass carafe.
  • Auto-Brew option allows you to program your Keurig Duo to automatically brew a carafe of coffee up to 24 hours in advance.
  • Pause and Pour allows you to pour coffee from your carafe mid-brew.
  • The smart start option allows you to select your cup size and brew your coffee in one process rather than waiting for the water to heat before selecting your size.
  • Accommodates travel mugs up to 8″ tall.

FINAL VERDICT – 87.5/100

I believe that Keurig lovers will not be disappointed with their purchase of this innovative model. It provides the flexibility of both coffee grounds and k-cups in one device and can be an excellent option for those who want to brew either a whole carafe or a single cup of coffee. For such an innovative product like Keurig Duo, I expected an advanced appliance with full programmability and temperature control. I feel like this model falls short, lacking these features. Nevertheless, I still think that Keurig lovers may enjoy the Keurig K-Duo for its functionality and convenience.  If you like this review, check out some of my other reviews!

Keurig K-Duo Coffee Maker


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