Keurig K-Slim Review USA 2021: Why is it Trending Right Now?

The Keurig K-Slim is a single serve coffee maker that you can consider the best entry level coffee maker.

Fits easily in less than 5 inches, this coffee maker comes with a host of features that make it one of the best coffee machines in its segment.

Priced around $80, this coffee maker is a better affordable option that is compatible with a variety of K-Cups.

I have had this coffee maker for several months and am using it regularly in my daily use.

In this Keurig K-Slim review, I’ll give you all the ins and outs of this coffee maker, so you won’t have to worry about buying and using it.

Apart from this, further in this review, we will also know those things due to which this coffee maker is in trending nowadays.

Before we jump into the Keurig K-Slim review, we need to be aware of a few important things.

Things To Consider Before Buying Keurig K-Slim

Is Keurig K-Slim the Right Choice for You?

Before buying this coffee maker, you should know whether the features it is providing will be useful for you or not.

If you are fond of drinking latte then you may be disappointed.

Because in this you will not get to see milk frother, thereby you will not be able to make latte.

Also, this coffee maker does not allow you to control the strength of the coffee which is a drawback.

If coffee strength is more important to you then this coffee maker is not for you.

Instead you can give preference to Keurig K-Mini Plus.

At the same time, in this you will get to see only 3 brew size presets which according to me are less.

Some people are fond of drinking stronger coffee, so they may be a bit disappointed as this coffee maker provides a minimum brew size of 8 ounces.

Also, this coffee maker does not live up to the expectations for iced coffee drinkers as it does not have an iced brew option.

Apart from all this, if you are one of those people who want all the useful features in one coffee machine then you should focus on another machine instead.

Why You Should Consider This Keurig K-Slim

The Keurig K-Slim doesn’t offer many features, but despite this, you will find many useful features that make it a useful coffee machine, which I will cover in detail in the next section.

But here I would like to mention some important features which are responsible for bringing it into consideration.

Its biggest selling point is its size.

Although you also get to see coffee makers less than 5 inches in size like Keurig K-Mini, but its water reservoir makes it different.

The Keurig K-Slim comes with a large 46 ounce water reservoir, which is really a big deal to get in such a small sized coffee maker.

In my opinion, you should get to know Keurig K-Slim better, which will help you make your buying decision easier.

For this you have to stay with this article.

Keurig K-Slim Review USA 2021

Keurig K-Slim Review


  • Dimensions: 18 x 15 x 8 inches
  • Material: Plastic
  • Brew size: 8, 10, & 12 ounce
  • Water reservoir: 46 ounces


  • Fits anywhere less than 5″ wide
  • Removable 46 ounce water reservoir
  • Auto off feature
  • Budget friendly


  • Only 3 brew sizes
  • No Brew Strengths or Temperature control features

Keurig K-Slim Review USA 2021: Design & Build Quality

The Keurig K-Slim’s design is one of its most attractive features.

Similar to Keurig’s traditional coffee makers, this machine is very small in size, having a similar design.

keurig k-slim design build quality

In this we get to see the base at the front where a drip tray has been given which is also removable where we can easily fit a 7 inch long travel mug by removing it.

At the same time, there is a lid in it, which when raised above shows the brewing compartment in which K cup pods are kept.

Overall the mechanism is superb where we didn’t have any problem using the K cup.

The entire coffee maker is made of plastic, due to which its weight is greatly reduced.

The plastic used in it is of good quality which gives it a premium feel.

Towards the top of the coffee maker, we get to see its control panel where there are 3 buttons for brew sizes as well as indication lights for Descale and Add Water.

Related: Keurig K-Duo Review

Keurig K-Slim Review USA 2021: Features

There is no doubt that the Keurig K-Slim is a great coffee maker that offers advanced and useful features.

As I told you in the beginning that its features make it a useful machine, now is the time to know the features that will put pressure on you to buy it.

Related: Keurig K-Elite Review


I have mostly seen that people often prefer compact things more.

The Keurig K-Slim is one of the most compact coffee makers that can easily fit into any narrow space up to 5 inches wide.

Due to its small size, it occupies very little space on your countertop.

Related: Keurig K-Classic Review

Water Reservoir

The water reservoir of Keurig K-Slim is its most highlighted feature.

In this we get to see 46 oz large water tank which is the best feature in this segment.

It attaches to the back of the coffee maker, which you can also remove, that makes both cleaning and filling it with water extremely easy.

Also, it is well designed which makes it very easy to grip.

Related: Keurig K-Duo Plus Review

Fast Brewed

Another feature of the Keurig K-Slim which I really like is that we get to see a very fast brewing process in it.

Like other coffee makers, you do not have to wait for the water to heat up, rather this coffee maker automatically starts brewing coffee as soon as the water is hot, which is not only effortless but also saves valuable time.

Related: Keurig K Supreme Review

Auto Off

This feature of Keurig K-Slim Coffee Maker is beneficial for us in two ways.

First, it protects the coffee maker from damage.

Second, it consumes less electricity, thereby it proves to be energy efficient.

For those who do not know, let me tell you that in this feature, when we complete our last brewing process, after 5 minutes of this the coffee maker automatically shuts down.

As a result of neither the heat reaches the coffee maker nor does it consume much electricity.

Overall, this feature proves to be very useful for all households.

Related: Keurig K Supreme Plus Review

Removable Drip Tray

I have seen many coffee makers in which we get to see the drip tray but they are not removable which creates a lot of trouble but this coffee maker comes with removable drip tray which is very useful while cleaning.

Related: Bella Dual Brew Single-Serve Coffee Maker Review

3 Brew Sizes

The more brew sizes available in a coffee maker, the more useful it is for us.

keurig k-slim brew sizes

Unfortunately this coffee maker only provides 3 brew sizes 8 oz, 10 oz, & 12 oz.

In my view, the company should have given one or two more brew sizes in it so that it would be convenient for those who drink strong coffee.

Due to these brew sizes, this coffee maker is not an ideal choice for those who tend to drink stronger coffee.

Best Alternative’s

Despite having so many useful features in the Keurig K-Slim coffee maker, there are a few downsides that we just can’t ignore.

I have come across many coffee makers which can be called the best alternative to K-Slim.

Come, let’s see the coffee makers that you can also prefer over the Keurig K-Slim coffee maker.

Related: Chefman Single Serve Coffee Maker Review

Keurig K-Mini

The Keurig K-Mini is also a single serve coffee maker that fits snugly into even a 5 inch narrow space.

Compared to the Keurig K-Slim, we also get to see a 6 oz brew size, which is an extra add-on.

This coffee maker has all the features of K-Slim to a large extent and some features are even better, but despite this it remains a bit weak due to its water reservoir.

To brew coffee with this coffee maker, you have to fill water every time which becomes a bit irritating task.

But if you do not need a large water reservoir, then Keurig K-Mini is a great alternative.

Read my Keurig K-Mini review here.

Keurig K-Slim Review USA 2021: FAQ’s

How do you use the Keurig K Slim?

You can follow the steps given below to brew coffee in Keurig K Slim Coffee Maker.

First insert the K cup by lifting the lid of the brewing compartment up
Select the desired brew size
Press the brew button

Why is my Keurig K Slim not working?

Usually the biggest reason why a coffee maker doesn’t work is its needles. Due to the continuous brewing process, the needles of the coffee maker become clogged, as a result of we have trouble brewing coffee.

To get rid of this, you have to repeat the brewing process every week with fresh water without using the K cup. With this, the particles of ground coffee in the needles will come out with the water and the needles will remain clean.

Related: Cuisinart DCC-450BK Review

Keurig K-Slim Review USA 2021: Final Overview

In this Keurig K-Slim review, I have explained to you the features of this coffee maker as well as mentioned its downsides so that you do not have any kind of confusion about it.

So far I haven’t had any issues while using it.

If you are looking for a coffee maker that is single serve and has a large water reservoir, then the Keurig K-Slim would be a perfect choice.

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