Keurig Coffee Makers - Keurig K50 vs K55

Keurig K50 VS K55 Review

Keurig is one of the world’s most popular manufacturer of single serve coffee makers. The brand is owned by the Keurig Dr. Pepper company which has its headquarters in Burlington, Massachusetts.

The K50 and K55 are two of Keurig’s most popular coffee makers. Both use pods and brew coffee one cup at a time. Each one has a large water reservoir so they’re also good for making coffee to share! On the surface, the two machines look pretty similar.

The K55 is the newer of the two and is priced a bit higher. Both the Keurig K50 and K55 are medium-sized and take up more or less the same amount of space on your kitchen work surface, although the K55 is heavier.

The two are available in both black and red and you can use pods from any brand you like. You can also use machines reusable pods with both of these machines. We tested both of these coffee makers under normal home conditions and using Keurig’s own brand K-Cups and evaluated the speed, technical specifications, and appearance of both products. More importantly, we compared the taste of the freshly brewed coffee in one vs the other.

What is the Difference between the Keurig K50 and the K55?

Although at first glance you might think that one machine is the same as the other, there are some subtle differences between the K50 (also known as the K-Classic) and the K55. The first thing you’ll notice is the price difference. The K55 has several extra features and a price tag to cover them.

The Keurig K Classic Coffee Machine has been around for more than a decade now and the manufacturers recently launched a modernized version of the same machine; the K55.

There has been much chat online about the differences between these two machines but I’m hoping to clear this up! Read on for my comparison of the Keurig K Classic Coffee maker vs the updated K55.


The K55 is essentially an upgraded and improved version of the K50 K-Classic. Keurig has added some a couple of extras and the new model is heavier and feels like it might be a bit more durable than its predecessor.

One addition to the newer model is an auto-descaling setting which means less maintenance for people living in hard water areas. On top of that, the Keurig has added a charcoal filter to the K55 which they say gives a smoother tasting brew.

Other than that, the two are pretty close. We’ve compared them below, so you can easily see where the specifications vary:

The Keurig K50 VS K55

  • Size: 13.3″ x 10.1″ x 13.2″
  • Weight: 10 pounds
  • Servings: 6 oz, 8 oz & 10 oz
  • Water Reservoir: 48 oz
  • Brew time: 90 seconds (from cold)
  • Brew temperature: 89°C
  • Filter: Mesh
  • Special Features: 1-year warranty
  • Energy saver
  • Size: 9.8″ x 13″ x 13.3″ x 13.3″
  • Weight: 12.7 pounds
  • Servings: 6 oz, 8 oz & 10 oz
  • Water Reservoir: 48 oz
  • Brew time: 70 seconds (from cold)
  • Brew temperature: 89°C
  • Filter: Charcoal
  • Special Features: 1-year warranty
  • Energy saver
  • Auto Descaling

The Keurig K50 vs K55 Appearance

Both the Keurig machines look very similar. They’re available in the same color options of black and red and they’ll blend in fine with most kitchen color scheme. The newer K55 model is slightly larger but both are of modest size and won’t take up too much space on the countertop. In my personal opinion, the black option looks better in both machines.

If I had to choose between the two models for aesthetics alone, I’d probably choose the Keurig K55. This model is a little more streamlined and contemporary in appearance while the Keurig K50 has a slightly clunkier and more basic look.


It’s the performance category where the K50 and K55 are most similar. Both machines will brew a single cup of coffee from a range of different pods.

Both also have a 48oz water reservoir – enough for about 6 cups of joe and can be set to six, eight and ten-ounce serving sizes.

The brew temperature is a steady 89°C and you cannot change this on either of the two machines. Neither of the two has an LCD display and operating the brewer is simple, straightforward and fuss-free.

When we tested the two machines, the K55 Elite was slightly faster from cold, but once the first cup of coffee was brewed, both machines worked equally fast!

decorated black coffee with a love heart made from many black coffee beans, and a silver spoon to the left

Cleaning the Keurig K50 and K55

it’s super easy to clean either one of these machines. Coffee pods mean minimal mess and the removable drip tray can be easily rinsed out, as can the reservoir.

The Keurig K55 has a small advantage vs the K50 because there’s an auto de-scaling feature which means that most people should never have to use chemical products to descale the machine.

That said, if you go for the cheaper K50, descaling is a pretty easy process and should take just minutes to complete.

Using the Keurig K50 and K55

Both the Keurig K50 and K55 are pretty minimalistic when it comes to programmability. The two machines have a button controlled panel. It isn’t possible to program the machine in advance and the controls are limited to serving size. However, this doesn’t need to be a negative. Both are entry-level machines and extremely straightforward to use.

Brewing coffee in either machine is a pretty simple process. You fill up the removable reservoir, insert a pod, press play and you are good to go! Oh, don’t forget to put a cup under the dispenser or you’ll end up with coffee all over your countertop and Yes, I HAVE actually done that!

You can fit any standard sized cup or mug under the dispenser and the coffee pours out in a steady stream without any splashing or mess. Once warmed up, both machines will brew an 8oz serving in less than one minute but we did find that the K55 is marginally faster from cold.

How's the coffee?

Okay, here is the weird thing: In spite of upgrades and an improved filter on the new Keurig K55, there really is no discernible difference between the coffee from either machine. When it comes to the K55 vs the K50, you really cannot tell the difference between the coffee from either machine.

As pod coffee goes, the two machines produce a very drinkable, hot, well rounded and satisfying brew. We tried the machine with Keurig’s own coffee maker K cup brew but you can use any pod coffee that you like which is a big plus. You can also use reusable pods. Our only complaint is that you can’t play around with the temperatures but that’s not the end of the world.

So, which is better: the Keurig K50 or the Keurig K55?

Honestly, there is not much between these two coffee machines but if I had to choose, I’d go for the K55. The machine looks a little bit more modern and I do like the fact that it has the auto-descaling function. I’ve also trawled through hundreds of reviews on both of these coffee makers online and in general, users seem to have more praise for the K55.

In upgrading the K50 to the K55, Keurig seems to have addressed the few complaints that some users had and made it a little more intuitive and sturdy. However, the original K50 is still a very respectable and worthy machine. If you are not too fussy and just want a decent quality pod coffee machine that you can use with multiple brands, the K50 won’t let you down.

If, however, you live in a very hard water area and you don’t mind paying a few extra dollars, then the K55 is a marginally better machine. There really isn’t much in it though so check the current prices and decide accordingly. Even if you don’t have hard water, maintenance is important for every machine so do make sure that you clean and descale your coffee maker at least twice a year.

These 2 machines are great for speed and convenience but they won’t fit every lifestyle. If you need to brew large amounts of coffee to share or you want a machine with more functionality, check out Keurig’s K-Duo Plus Coffee Maker 

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