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Keurig K-Slim Coffee Maker Review: Best Space-Saving Design

A portable, easy to use coffee maker for one person commuting every day or traveling. With a 46-ounce reservoir, you can brew 4 cups without refilling.

Keurig K-Slim Coffee Maker

Keurig K-Slim Coffee Maker

You don't need to wait for the brewer to heat water with the K-Slim before choosing the cup size. As soon as you insert the k cup, choose the size, and press the brew option, the coffee maker automatically starts heating and brewing water.

  • Brand: Keurig
  • Product number: K-Slim
  • Material: Plastic


Measuring five inches in width, Keurig K Slim fits neatly on your kitchen counter. And despite its miniature size, it comes with a removable reservoir that can brew 8, 10, and 12-ounce cups.


  • Easy to use
  • Saves energy and space
  • K-cup flexibility


  • Lack brew strength control
Coffee taste
Ease of use
Value for money

The details

Are you looking for a coffee maker that saves on space and makes it easy to brew varying sizes of coffee cups?

The Keurig K-Slim is a good buy. Equipped with a 46-ounce reservoir, the coffee maker can brew three different cup sizes at the push of a button, making it easy to serve a fresh cup to your guests based on their preferences.

Coffee taste

While the K-Slim doesn’t allow you to choose between brewing regular or strong coffee, the coffee taste is relatively strong. However, the taste may vary based on the coffee pod and how clean the machine is.

While some customers cite they could use the coffee maker with any pods, Keurig maintains that K-slim is only compatible with Keurig K-Cup pods, not K-Mug pods, Rivo pods, or K-Carafe pods.

Descaling the reservoir as instructed and cleaning the needle after brewing dense beverages also helps brew tasty coffee.

Ease of use

Apart from the small and simple design that makes it easy to maneuver, the Keurig K-Slim is pretty easy to use. Pop up the handle, insert the K-Cup, and choose the desired cup size using the handful of buttons on top of the device.

Cleaning the coffee maker is also pretty straightforward; a simple wipe-down using a damp cloth once a week should keep it spick and span. However, you may need to remove some parts like the water tank and the drip tray for a thorough clean.

The challenging part is descaling the reservoir, which is only necessary every 3-6 months to remove lime, scale, and bacteria buildup.


K-Slim coffee maker isn’t as complicated as other Keurig coffee makers. What stands out is its auto shut-off feature that turns off the machine five minutes after brewing coffee. It isn’t delightful, but it helps save on energy.

Unfortunately, it lacks many handy features like the Strong Brew option, temperature control, iced brew button, and hot water, which most buyers look for when buying coffee makers.


We found the K-Slim model a little overpriced for its features. The only silver lining is its auto

shut-off feature, ability to brew three different cup sizes (without refilling), and to accommodate a 7’’ travel mug; otherwise, we’d recommend more affordable options.

The Keurig K-Mini coffee maker, for example, is more affordable and a great single-serve coffee maker.

Final verdict

Keurig K-Slim is an excellent option for buyers looking for a simple coffee maker that doesn’t take up too much counter space. It offers basic cup options, and you don’t need to add water when brewing individual cups.

However, if you want to achieve the characteristic bitter coffee taste, you’d have to guess the amount of time to brew the coffee grounds as it lacks a strength control feature.

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