Comparing Keurig Models in 2021 [Chart]

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Choosing a Keurig used to be easy. Now, they have nearly 20 Keurig models just for home use, half a dozen office machines, and several dozen discontinued lines. 

This handy guide will help you compare all the different Keurig models. We’ll go over which features are most important, the variety of sizes available, and some of the most critical design differences.

Current Home Keurig Models Chart

Important Keurig Features

Cup size selection

Depending on the machine, you may have as many as 5 single-serving coffee cup sizes to choose from, ranging from 4 ounces to 12 ounces. Some of the smallest coffee makers (K-Mini, K-Mini Plus, K-Slim) don’t have a size selector; instead, they brew with as much or as little water as you add to the reservoir.

All current Keurig models take the same pod size, so the brew size does impact the flavor. Most machines will maintain good flavor up to the 8-ounce cup size. The average coffee lover will notice a weaker flavor at 10 ounces, and the 12-ounce cups will disappoint anyone that doesn’t enjoy watery coffee.

Drip coffee and carafe

Along with single-serve coffee, the K-Duo line of Keurigs can brew an entire carafe of drip coffee. All of these machines can brew 8, 10, or 12 cups of coffee at a time, and all but the K-Essentials can brew 6 cups as well.

Some of these machines (K-Duo, K-Duo Essentials) have a standard glass carafe like you would find on most drip coffee makers. The K-Duo Plus has a stainless-steel thermal carafe that maintains the temperature of the coffee for several hours without the burnt flavor you get from leaving coffee on a hot plate.

Water tank

All Keurigs have a water tank, but the size of the home machine tanks can vary from single-cup (K-Mini, K-Mini Plus, K15) to 78 ounces (K-Supreme Plus, K-Supreme Plus Smart). Those largest tanks can brew up to 9 8-ounce cups or 13 6-ounce cups without the need for a refill.

Several recent Keurig models have removable water reservoirs. This feature makes refilling the tank easier. More importantly, though, it allows you to clean the reservoir in your sink.

The K-Supreme and K-Duo Plus models feature an adjustable water tank, which can be positioned beside or behind the brewer. This is an improvement for those with limited counter space as you have two options for how to fit the brewer into your kitchen.

Strong button

The old Keurigs made weak coffee. Newer Keurigs make much better coffee, but some coffee fans were looking for stronger coffee. The company’s response was the Keurig strong button.

The strong button slows down the brewing process by about 30 seconds. That extra time allows the water to pick up more oils, acids, and sugars from the ground coffee, resulting in a much more flavorful brew.

I would call this feature a must-have for those used to drip coffee

Temperature control

Most Keurigs brew at 192 degrees Fahrenheit. A few higher-end models (K-Elite, K-Supreme Plus, K-Supreme Plus Smart) allow you to tweak the hot water temperature in a small range. In the case of the K-Elite, that range is 187–192 degrees, and the K-Supreme Plus’s presets do not specify the actual temperatures. 

This feature offers a bit of extra customization that is nice for some beverages, but most users probably won’t find it particularly useful.

Iced coffee

You can pour any hot coffee over ice to make iced coffee, but it will come out weak. Even the Keurig strong setting is not enough to withstand the watering-down effect of a glass of ice. 

That’s why the K-Elite, K-Supreme, K-Supreme Plus, and K-Supreme Plus Smart all have an iced coffee setting.

Much like the iced coffee setting on some of the best Ninja coffee makers, this feature brews the coffee hotter and stronger than the standard brew setting. This richer brew is able to withstand the dilution from the ice, letting you enjoy a flavorful cup of iced coffee.

Lattes and cappuccinos

The Keurig K-Cafe and K-latte are able to brew lattes and cappuccinos along with regular coffee. Both of these machines include a milk frother that is made of either stainless steel (K-Cafe) or non-stick plastic (K-Latte).

They still use standard k-cup pods for the coffee, and the frothers can be used with any type of milk.

MultiStream technology

Keurig is continuing to improve the strength and flavor of their coffee, and MultiStream is the biggest Keurig enhancement since the strong button. 

Most Keurigs shoot pressurized water through the center of the k-cup. Coffee grounds around the edge of the pod are often under-extracted, meaning that some of the coffee flavor is left behind in the k-cup.

MultiStream fixes this by shooting multiple streams of water into the pod, spreading the water across the entire interior. That ensures that all of the grounds are fully extracted, producing amazing coffee that is richer and much more flavorful.

If you are coming from a traditional coffee maker, brewers with MultiStream technology (K-Supreme, K-Supreme Plus, K-Supreme Plus Smart) will match your coffee tastes far better than other Keurigs.

Fits travel mug

Many older Keurig models didn’t have space for a standard travel mug to fit under the nozzle. That’s no longer an issue, as every modern Keurig can brew directly into your travel mug.

Auto-off

Almost all current Keurigs have an auto-off feature. This shuts down the brewer to save energy after either 5 minutes or 2 hours, depending on the model.

Home Keurig Pod Coffee Makers

K-Classic

Single-serve cup sizes: 6, 8, 10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 48 ounces

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 13.0″ H x 9.8″ W x 13.3″ D

The Keurig K-Classic is the new baseline Keurig model. It replaced the iconic K-40 and K-50 series — the simple machines that defined the Keurig brand and design.  

Compared to older models, the K-Classic has greatly improved brew quality and a better overall build. However, it’s lacking most of the features found in other current Keurig models.

If you want a basic, no-frills machine with a traditional Keurig look, then the K-Classic is perfect. If you’re looking for a similar design with more advanced features, check out the K-Select and K-Elite.

K-Select

Single-serve cup sizes: 6, 8, 10, 12
ounces

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 52 ounces

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.5″ H x 9.2″ W x 11.6″ D

The Keurig K-Select is the mid-tier in Keurig’s flagship line. Compared to the K-Classic, its biggest advantage is the introduction of the strong button which makes more flavorful coffee by slowing the brewing process by 30 seconds. The K-Select also has a slightly larger water tank and includes the 12-ounce cup size.

K-Elite

Single-serve cup sizes: 4, 6, 8, 10, 12
ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 75 ounces

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 13.1″ H x 9.9″ W x 12.7″ D

The Keurig K-Elite is the premium alternative to the K-Classic and K-Select. When comparing the Keurig K-Elite vs K-Select, the only advantage of the K-Select is price. The K-Elite features a much larger water tank, an added 4-ounce cup size, and it includes the ability to adjust the temperature of your brew.

It also introduces the iced coffee feature, which brews a hotter, stronger coffee that can withstand the diluting effects of being brewed over ice.

K-Express Essentials

Single-serve cup sizes: 6, 8, 10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 36 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 11.3″ H x 6.5″ W x 12.2″ D

The Keurig K-Express Essentials is one of a handful of Walmart-exclusive Keurigs. It’s designed to be small and simple, with almost none of the newer Keurig features. Unlike the K-Classic line, though, it does have a removable water tank for easy refills and cleaning.

K-Mini

Single-serve cup sizes: 6–12 ounces

Drip coffee sizes: N/A

Carafe: N/A

Water tank: Single cup

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.1” H x 4.5” W x 11.3” D

There’s a lot of similarity between the Keurig K-Mini and the K-Express Essentials. The K-Mini is slightly smaller and available at all Keurig retailers. In fact, the K-Mini and K-Mini Plus are the smallest Keurig coffee makers.

The water tank on the K-Mini is the smallest of any Keurig, with enough space to hold a single cup of coffee. You can add anywhere from 6–12 ounces of water to adjust the brew size, and the machine will use all of the water in the tank each time.

K-Mini Plus

Single-serve cup sizes: 6–12 ounces

Drip coffee sizes: N/A

Carafe: N/A

Water tank: Single cup, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.1” H x 4.5” W x 11.3” D

The Keurig K-Mini Plus is the same size as the K-Mini, but it has a few important improvements. First, the K-Mini includes the strong brew option. It also has a removable reservoir instead of the fixed tank of the K-Mini. Lastly, the K-Mini Plus can store up to 9 coffee pods for quick accessibility.

K-Slim

Single-serve cup sizes: 8, 10, 12 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 46 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.14” H x 4.76” W x 15.2” D

The Keurig K-Slim is another small Keurig, although it is a few inches deeper than the K-Mini. That extra space allows for a larger, removable water reservoir. Unfortunately, it doesn’t have the strong brew button of the K-Mini Plus.

K-Compact

Single-serve cup sizes: 6, 8, 10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 36 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.5” H x 8.2” W x 13.2” D

The Keurig K-Compact is another Walmart exclusive. In many ways, it resembles a thinner version of the K-Classic, with a smaller, removable water tank.

K-Supreme

Single-serve cup sizes: 6, 8, 10, 12 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 66 ounces, removable, multi-position

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions:
12.15” H x 7.85” W x 12.02” D (water reservoir on side)
12.15” H x 6.36” W x 15.11” D (water reservoir on rear)

The Keurig K-Supreme is probably the most innovative Keurig of the past several years. It has the strong and iced coffee features, giving you a lot of variety in how to enjoy your cup of coffee.

It’s also the first Keurig to include the incredible MultiStream Technology, which uses extra water jets to extract the maximal flavor from each coffee pod. I can’t stress enough how important that feature is to the future of pod coffee.

The K-Supreme is also one of only two Keurig models with an adjustable water tank. If your counter space is limited, this is a nice touch. You can place the tank on either the side or back of the machine, depending on what best fits your available space.

K-Supreme Plus

Single-serve cup sizes: 4, 6, 8, 10, 12 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 78 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.2” H x 8.3” W x 13.3” D

Unlike other Plus variants, the K-Supreme Plus is not strictly an upgrade. Its water tank is fixed, instead of the dual-position tank of the K-Supreme.

The K-Supreme Plus does add a few useful features. First, instead of just a strong button, it has 3 brew strength options. Second, it has 3 brew temperature presets to choose from. Third, its water tank is the largest of any Keurig, with a full 12-ounce advantage over the K-Supreme. Finally, it adds a 4-ounce cup size to the options of the K-Supreme.

K-Supreme Plus Smart

Single-serve cup sizes: 6, 8, 10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 78 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.35” H x 8.3” W x 13.35” D

The Keurig K-Supreme Plus Smart is the latest addition to the Keurig lineup. It’s so new that it’s not even available on Amazon yet. For the most part, its features are the same as the K-Supreme Plus, but there is one critical difference: BrewID.

BrewID technology is so new that I haven’t actually been able to try it out yet, so I dug into the marketing info and technical docs for this info.

Other Keurigs treat every k-cup the same. They don’t know the difference between an espresso k-cup, a high-caffeine k-cup, and just a regular coffee k-cup.

BrewID changes all of that, allowing the machine to tell the difference between 900 different k-cups, automatically selecting the perfect brewing conditions for the individual variety of coffee. Of course, you can still modify the settings if you choose, but most people will probably be happy with the presets.

K15

Single-serve cup sizes: 6–10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: Single cup

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 11.1” H x 7.5” W x 10.5” D

The Keurig K15 is technically discontinued, but it is still available through some retailers. It’s the precursor to the K-Mini, so I would generally recommend that people look to that instead, but some might like the style of the K15 better.

K-Duo

Single-serve cup sizes: 6, 8, 10, 12 ounces 

Drip coffee sizes: 6, 8, 10, 12 cups

Carafe: Glass

Water tank: 60 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.92” H x 10.94” W x12.76” D

The Keurig K-Duo was Keurig’s first dual coffee maker. One side of the machine makes single-serve coffee using k-cups. The other uses loose grounds and a standard paper coffee filter to make a 12-cup carafe of coffee, similar to regular drip coffee makers. If you don’t want to worry about paper filters, you can buy a separate reusable mesh filter.

This side-by-side design makes the K-Duo (and the related K-Duo Essential) the widest of all Keurig coffee machines. It’s not clear whether this design was chosen for extra versatility or because separating the carafe and single-serve components was just easier with how Keurigs work.

The single-serve features of the K-Duo are similar to other mid-tier Keurigs, including the strong button and the removable water tank. The water tank is shared between the two sides, simplifying maintenance but making it impossible to use both sides simultaneously.

The Carafe side is programmable with an auto-brew that can be set up to 12 hours in advance. It can brew as few as 6 cups of coffee at a time, and there is a pause and pour feature that lets you grab a cup of coffee before the entire brew cycle is complete. There’s also a heating plate to keep your pot of coffee warm.

K-Duo Plus

Single-serve cup sizes: 6, 8, 10, 12 ounces 

Drip coffee sizes: 6, 8, 10, 12 cups

Carafe: Stainless steel, thermal

Water tank: 60 ounces, removable, multi-position

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions:
14.19” H x 8.2” W x 11.7” D (water reservoir on side)
14.19” H x 7.68” W x 15.88” D (water reservoir on rear)

The Keurig K-Duo Plus is a complete redesign of the K-Duo. It combines the carafe and single-cup options together instead of having dedicated sides for each. The result is a thinner, sleeker device, although it is the tallest of all Keurigs.

The K-Duo Plus replaces the K-Duo’s glass carafe with a thermal one. This keeps the coffee warm for much longer without impacting the flavor of the brew. The thermal carafe allowed them to eliminate the heating plate, so you’ll save energy and avoid burning your coffee.

Instead of paper filters, the K-Duo Plus comes with a reusable gold-tone mesh filter for making a carafe of coffee. The single-serve option still uses regular k-cups.

The K-Duo Plus features a three-position adjustable water tank, which can be placed on either side or behind the machine. That’s even more flexibility than the K-Supreme, making this the ideal alternative for those that need both single-serve and carafe coffee options that will fit any counter.

K-Duo Essentials

Single-serve cup sizes: 8, 10, 12 ounces 

Drip coffee sizes: 8, 10, 12 cups

Carafe: Glass

Water tank: 60 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.74” H x 12.27” W x 13.44” D

This one is also supposed to be a Wal-Mart exclusive, but I did find it on Amazon, too. It’s basically a stripped-down version of the K-duo. It loses the crucial strong coffee button as well as the 6-ounce cup and 6-cup carafe size selections. It’s also slightly larger than the standard K-duo.

K-Cafe

Single-serve cup sizes: 6, 8, 10, 12 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 60 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.5” H X 15.3” W X 11.7” D

If you want cappuccinos or lattes, the Keurig K-Cafe and K-Latte are your only options from the company. The K-Cafe is the most full-featured of the two, including a larger, removable water tank, the presence of a strong button, and a fourth cup size: 12 ounces.

The K-Cafe’s milk frother is made of stainless steel and is dishwasher safe. It heats the milk and has multiple froth settings, letting you brew cappuccino froth, latte froth, or cold froth.

K-Latte

Single-serve cup sizes: 6, 8, 10 ounces 

Drip coffee sizes: N/A

Carafe: N/A

Water tank: 36 ounces, removable

Strong button:

Temperature control:

Iced coffee:

Lattes and cappuccinos:

MultiStream technology:

Fits travel mug:

Auto-off:

Digital clock:

Dimensions: 12.5” H x 8.5” W x 13.2” D

The Keurig K-Latte is a Walmart exclusive. It’s not officially an Essentials variant of the K-Cafe, but it may as well be. It doesn’t have a strong button, and the removable water reservoir is just 36 ounces. 

The K-latte’s frother only has a single setting, although it does both heat and froth the milk. Its setting is most similar to the latte froth setting of the K-Cafe. It’s also made of plastic with a non-stick interior, so it’s not dishwasher safe.

Commercial Keurig Pod Coffee Makers

K140

The Keurig K140 is Keurig’s basic office model, featuring a 48-ounce water reservoir and the ability to brew up to a 10-ounce cup of coffee. Compared to the home Keurig brewers, the biggest differences are the sturdier build and the drain brewer button, which is designed to ease transport and storage.

K150

The Keurig K-150 is a sleeker commercial brewer, designed to be customer-facing. It has a color LCD touchscreen, and the K150P variant even features a water line hookup.

K155

The Keurig K155 is very similar to the K150 in terms of design and functionality, but it’s designed for office use rather than to be customer-facing.

K1500

The Keurig K1500 has the largest water tank of any Keurig model. Its 96-ounce reservoir is designed to make this a low-maintenance machine for office use.

K-2500

The Keurig K-2500 has a color touchscreen, 5 brew sizes, and a strong brew option. It comes with a direct water line plumbing connection and is designed for use in medium-sized or large businesses.

K-3500

The Keurig K-3500 is designed for heavy use and includes a direct water line connection. It has a color LCD touchscreen, hot water dispenser, automatic k-cup ejection, strong brew setting, 5 brew sizes, and it can handle travel mugs. Its water tank is also drainable for transportation, and the machine is NSF certified.

K-Suite

The Keurig K-Suite is their hotel or vacation home coffee machine. It’s designed to be compact, sleek, and easy to use. It has a single-cup reservoir with the ability to brew 6–8 ounces of coffee.

FAQs

Which Keurig Models Have Been Discontinued?

Most of the discontinued Keurigs are just older versions of their current machines. However, a couple of them are worth special note:

Rivo

The Keurig Rivo was the predecessor to the K-Cafe and K-latte. Unlike those machines, though, the coffee it made actually had the strength of espresso. That’s because the Rivo produced 15 bars of pressure, much more than other Keurigs.

The downfall of the Rivo came from two main problems. First, it used specialized K-Rivo pods, which didn’t have the variety of other k-cups and were sometimes hard to find. Second, it was a direct competitor to Nespresso. In the end, consumers decided that Nespresso was worth it and Rivo wasn’t.

Keurig 2.0

The Keurig 2.0 was Keurig’s attempt at preventing third-party pods. It introduced a pod-scanning technology that made use of digital rights management (DRM) to ensure that only approved Keurig pods could be used. It was basically the same idea as the barcode-scanning technology used in Nespresso VertuoLine machines. 

All the Pod Things

Keurig’s variety of single-serve coffee makers continues to grow and improve. They now range from the tiny K-Mini to the versatile K-Duo Plus and the technological marvel that is the K-Supreme Plus Smart. Whether you are looking for your first k-cup coffee maker or an upgrade, it’s a good time to be a Keurig fan.

If you haven’t decided on a Keurig yet, be sure to check out Keurig’s main competitor: Nespresso. The DeLonghi and Breville Nespresso machines have the power and build quality of two of the world’s most renowned espresso machine brands.

The Nespresso VertuoLine brews both coffee and espresso pods, making it a direct Keurig competitor. When you compare the Nespresso Vertuo vs VertuoPlus and the newest Vertuo Next vs VertuoPlus, you’ll see some feature distinctions very similar to the ones we’ve discussed above.

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