Keurig is one of the most recognizable names in coffee. Known for its array of pod-based machines, the company helped spark the 21st-century wave of single-serve brewing. These convenient coffee makers can be found everywhere from offices to dorm rooms to kitchen counters, and the collection is extensive enough to suit a variety of needs. Some machines are designed to save space, while others come with milk frothers to craft lattes and cappuccinos. We tested 20 side-by-side to find which make the best morning brews.
Best Overall
Keurig Single-Serve K-Cup Coffee Maker
Multiple drink options
Easy to use
Dishwasher-safe milk frother
Not "true" espresso
Takes up a lot of counter space
(Note: The No. 1 top-rated Keurig in our Lab tests was the K250 model, which was recently discontinued. It's still possible to find Keurig K250s on Amazon, but we named our testing runner-up as the official best overall since it is much more widely available.)
The K-Café takes the classic Keurig K-Cup coffee brewer and adds both a milk frother and "shot" mode that makes 2 ounces of highly concentrated, espresso-style coffee for lattes and cappuccinos. We did not find that this machine could make "true" espresso, but it's certainly much less expensive than a dedicated espresso machine. (There are K-Cups made with "espresso roast" coffee, but the "shot" mode still doesn't brew coffee under high pressure like "real" espresso.) The milk frother produced a layer of fluffy peaks in our tests, though we were disappointed to find unwhipped milk beneath the froth rather than a uniform texture.
On the standard-coffee-brewing side, the K-Café passed our tests with flying colors. It took 65 seconds or less to brew up cups in all four sizes available, produced nice hot coffee, and is very simple to operate. The milk frother attachments are also dishwasher safe, a rarity for the mostly hand-wash-only Keurig line. The K-Café's drip tray is removable to fit a tall to-go cup, and its 60-ounce reservoir is enough to make five extra-large coffees without needing to refill.
The machine has an attractive sleek look, but it's kind of an odd shape that makes it take up more counter space than it needs to. On the other hand, if you'll be brewing coffee drinks every morning, it's worth dedicating the square footage.
Color: Charcoal | Water Reservoir: 60 ounces | Frothing: Yes | Strong Brew: Yes | Dimensions: 12.5 x 15.3 x 11.7 inches
Best Budget
Keurig K-Express Single Serve Coffee Maker
Low price
Easy to use
Small footprint
Small reservoir
No temperature or brew strength control
The beauty of the Keurig is that it makes coffee-brewing simple—stick a pod in the machine, press a button, and you're done. The K-Express provides a no-frills version of that experience for just about the lowest price you can find on any Keurig machine. It can make the standard 8-, 10-, or 12-ounce cups and has a regular and strong brew mode, and that's about it. But it performed just as well as the other models we tested in brewing hot coffee, fast.
The K-Express comes in at less than 5 inches wide, which makes it easy to slide away on the counter when not in use, but it can handle up to a 7.4-inch-tall travel mug. At 42 ounces, its removable reservoir is smaller than that of other Keurig models, but it's still enough to make three or four cups of coffee between refills.
Color: Black | Water Reservoir: 42 ounces | Frothing: No | Strong Brew: Yes | Dimensions: 12.6 x 4.6 x 12.9 inches
Best Customizable
Keurig K-Supreme Plus
Saves brewing preferences for up to 3 people
Large, removable reservoir
Highly versatile
Slower brew time
Not easy to clean
The great thing about using a single-serve brewer like a Keurig is that each person who wants a cup of coffee gets to choose exactly how they want it brewed. The K-Supreme Plus not only has three strengths, three temperature, and five cup-size options, but it can also save three different sets of preferences so you can get your coffee your way with one touch of a button. Its 78-ounce reservoir is larger than most models and can make a lot of coffee before being refilled, and it's removable, too, making it easy to refill when it finally does get empty.
All Keurigs make a pretty quick cup of coffee, but our tests found that this one's a little slower than other models, taking a bit over a minute to make a cup, whereas other models were as quick as 28 seconds. It's also kind of a pain to clean, as you have to disassemble all the pieces and wash them by hand. (Keurig does make special rinse pods and filters to clean the interior of the machine, which of course you have to buy from Keurig.)
Colors: Gray | Water Reservoir: 78 ounces | Frothing: No | Strong Brew: Yes | Dimensions: 13.4 x 8.3 x 12.2 inches
Best for Lattes
Keurig K-Café SMART
Built-in milk frother makes great froth
Precise control over coffee strength and temperature
Connected app and BrewID system
Expensive
App is complicated to set up
Difficult to clean
The K-Cafe Smart is smart for two reasons: Keurig's BrewID system reads the particular pod you insert to tailor its settings to the coffee you're brewing and the drink you're using it in, and it connects to the Keurig app, which lets you start your coffee from bed (even via Alexa or other smart assistant). To satiate latte lovers and cappuccino connoisseurs, the K-Cafe features a built-in milk frother that works with hot or cold milk (and non-dairy milk, too, of course) and we found it extremely effective.
Via the connected app or onboard controls, you can use any of five intensity settings and six temperature settings to make your coffee exactly how you like it, and there's even an iced coffee setting that brews extra-strong coffee designed to pour over ice. It's good that you don't need the app, though, as we found the instructions confusing and couldn't get the machine connected.
Keurig managed to fit all this into a frame that's 4 inches slimmer than the original K-Café, saving customers valuable counter space. The item also has a large and easy-to-remove water reservoir that holds up to 60 ounces. As you might expect, you pay for intelligence: The K-Café Smart is on the pricy end for a Keurig coffee maker.
Color: Black | Water Reservoir: 60 ounces | Frothing: Yes | Strong Brew: Yes | Dimensions: 12.7 x 11 x 17.2 inches
Best High-Volume
Keurig K155 OfficePro Premier Brewing System
Huge reservoir
Adjustable brew temperature
LED touchscreen
Expensive
No brew strength control
Great for small businesses or for big families that take their coffee drinking very seriously, this machine is ready to work. A simple touchscreen controls the brew temperature and other settings, and the unit can make a cup of coffee in four different sizes in not much more than a minute. The drip tray is removable, so you can fill a travel mug or taller cup of coffee easily. The OfficePro's huge reservoir is the big appeal for big coffee drinkers; it can make more than 20 small cups, or nine big ones, between refills.
We found the OfficePro extremely easy to use, with a touchscreen that's pretty much entirely self-explanatory. The water tank needs a few minutes to heat up when you first turn it on, but afterward it was able to make all but the 10-ounce cup in the less than a minute the brand claims. (The 10-ounce cup took a minute and 12 seconds, which is still solid.) The adjustable temperature works accurately and is a nice feature, but we missed the ability to set the strength of the brew like we were able to do with the other Keurig machines. A nice feature, especially if you're using the machine in an office break room, is that all of its pieces come apart easily for cleaning with simple soap and water.
Color: Silver | Water Reservoir: 90 ounces | Frothing: No | Strong Brew: No | Dimensions: 13.9 x 10.4 x 14 inches
Best With Carafe
Keurig K-Duo Essentials Single Serve & Carafe Coffee Maker
Makes up to 12 cups at once
Can use K-Cups or ground coffee
Inexpensive
No temperature or brew strength control
Slower than other Keurigs for single cups
This machine is pretty much a mash-up of a classic Keurig and classic drip coffee maker, for a price lower than most K-Cup-only models. The single-serving side can dispense an 8-, 10-, or 12-ounce mug of coffee, while the carafe side can make 8, 10 or 12 cups. The carafe side takes a standard coffee filter and whatever ground coffee you like, which gives you a much wider selection of options than the K-Cup format. (There is a My K-Cup reusable pod that can be filled with any ground coffee, as well, but that's sold separately.)
In testing, we missed the temperature and brew strength controls other Keurigs offer. We also found the K-Duo Essentials took longer to make single servings of coffee than other Keurigs, perhaps due to the fact that the whole reservoir has to heat up before using either the carafe or K-Cup side. It only took a little over nine minutes to fill the carafe with 12 cups, which outperformed the other two carafe models we tested, though.
Colors: Black or gray | Water Reservoir: 60 ounces | Frothing: No | Strong Brew: No | Dimensions: 15.8 x 15.7 x 15.8 inches
Best for Small Spaces
Keurig K-Slim + Iced Single Serve Coffee Maker
Small size
Easy to use
Brew Over Ice feature
Left coffee grounds in the cup
Does your tiny kitchen put counter space at a premium? Or maybe you have a countertop already crowded with an air fryer, microwave, sous vide, and mixer? The K-Slim might be perfect for you. It's got all the brewing power of a bigger machine (albeit with a slightly smaller reservoir) in a shape designed to slide between other countertop items.
The K-Slim + Iced doesn't have any custom strength or temperature settings, but it does have a special Brew Over Ice mode that starts very hot and finishes cooler to make you an iced coffee that's strong but doesn't melt all the ice in the glass. The controls couldn't be simpler, as it starts to brew immediately when you close the lid. If you forget to put a mug in place, the drip tray also holds a full accidental brew so you don't get coffee all over the counter.
The big negative we found in testing with this model is that it left some bits of coffee grounds in the bottom of the cup. That was a surprisingly uncommon issue in our Keurig tests; only a handful of the models we tested left any sediment in the coffee.
Color: Gray | Water Reservoir: 46 ounces | Frothing: No | Strong Brew: No | Dimensions: 12.1 x 4.7 x 15.2 inches
Final Verdict
The Keurig K-Café is the most versatile Keurig you can find, as well as one of the top-performing—backed by extensive testing. It lets users brew everything from lattes and cappuccinos to regular coffee in four different sizes. A more inexpensive option is the Keurig K-Express, which performed well in our Lab and offers all the convenience of a Keurig machine at a comparatively low price.
How We Tested Keurig Machines
We purchased and tested 20 different Keurig models, using Barista Prima Italian Roast K-Cups as the standard for all brewing tests. For each model, we brewed cups of coffee in each available size, measuring brewing time, final temperature, and accuracy of volume as well as taste. We also poured samples of finished coffee through standard coffee filters to look for any sediment left in the brew.
If an iced coffee option was available, we prepared iced coffee following the included directions and rated its flavor and level of ice retention. For models with large-volume carafes, we repeated the same tests at each available carafe fill level. To test machines with milk frothers, we followed the included directions to prepare and rate lattes, as well as rate the frothed milk by itself, both hot and cold.
In addition, we made general observations and ratings for each model on design, ease of use, and cleaning. We noted any difficulties they found with setup, filling the reservoir, selecting options, or brewing coffee, and kept an eye out for other helpful features or annoying design choices. After the brewing tests, we cleaned each machine following the manufacturer's directions and noted how easy each one was to disassemble, clean thoroughly, and reassemble.
The Spruce Eats Team Tests Keurig Coffee Makers
Other Options We Tested
- Keurig K-Elite: Despite the "elite" name, this is a fairly standard Keurig machine. It offers minimal customization options beyond cup size, and it makes an OK cup of coffee. It does have an extra-large water reservoir, but otherwise, the K-Elite offers the same functionality as the K-Express or K-Slim, only with a larger footprint and higher price.
- Keurig K-Classic: Our tests found most Keurig models to be remarkably consistent in brewing quality and flavor; the K-Cup brewing system does a great job in that respect. The K-Classic machine is no exception, but it doesn't offer any special features that other machines do at the same price point.
- Keurig K-Mini: This was really the only Keurig that we found mechanical issues with in our tests. We had to open and close the lid multiple times to get it to start brewing, and it left coffee grounds in the cup. There are cheaper basic models than the K-Mini that make just plain coffee effectively, as well as more expensive ones that have more and better features.
- Keurig K-Iced: This is a worthwhile option if you want a simple pod-based coffee maker and don’t fret too much about drink quality. The K-Iced is as easy to use as any Keurig device, well-priced, and impressively compact. Unfortunately, we didn’t find the coffee good enough to confidently recommend the item. We also had to fill a glass to the brim with ice cubes or else the coffee was more lukewarm than cold.
What to Look for in a Keurig
Versatility
Keurig coffee makers come with all sorts of different features. Figuring out the features that are most important to you is a great way to narrow down your options. Do you want a highly versatile machine with adjustable settings and the ability to make lattes and cappuccinos? Or would you be happy with a more basic, and likely cheaper, model that just makes black coffee?
Size
Many Keurig coffee makers are specifically designed to save space. That's what makes the brand a great option everywhere from offices to dorm rooms to cluttered kitchens. If you do have the space, however, larger Keurigs often have added features, so it may be worth sacrificing a little more room on the countertop if you can spare it.
Price
Price is an important consideration when buying any coffee maker. Luckily, it's a little easier to compare value for money when looking at products all made by the same brand. Think about the features you want in a Keurig coffee maker and see if they fall within your price range. Keurigs are generally more expensive than regular drip coffee makers, but even the top models aren't outrageously pricey.
Useful Accessories for a Keurig
Keurig My K-Cup
A reusable K-Cup is a budget pick-up with big benefits. It not only helps you save money over time, since bagged coffee is cheaper per serving than K-Cups, but allows you to enjoy any type of coffee you want. While you can likely find a reusable K-Cup in the grocery store, we recommend the Keurig My K-Cup because it works with all Keurig brewers.
Instant Pot Instant Milk Frother
Many Keurig coffee makers have built-in milk frothers, and the brand also offers bundle deals that include a separate frother at a reduced price. If you're looking for a milk frother on your own, though, the Instant Pot Instant Milk Frother received a terrific score in our testing process and it's reasonably priced. It can froth milk for a latte or cappuccino in a few minutes while you pop in a K-Cup.
DecoBrothers K-Cup Holder
Without proper storage, K-Cups can become a haphazard mess, spilling out of your cupboards and drawers. You can avoid that issue with the DecoBrothers K-Cup Holder, which we tested firsthand. It holds up to 36 K-Cups and fits inside a drawer or beneath your Keurig coffee maker. It's sturdy, opens smoothly, and doesn't cost much.
FAQs
How do I clean my Keurig?
Regularly cleaning your Keurig device is the best way to ensure consistent long-term performance. Lack of upkeep can cause everything from grounds ending up in your cup to the water not getting hot enough to the machine dispensing too much or too little coffee. Undiagnosed clogs or leaks can quickly ruin your Keurig permanently, so it's important to follow the unit's individual directions for cleaning. In general, you'll need to take apart and thoroughly rinse tanks, tubes, and filters. Most Keurig parts are not dishwasher safe, but they are easy to clean with dish soap and running water.
Descaling is a more thorough cleaning process for a coffee maker that only needs to be done every three to six months. This removes mineral residue (aka “scale”) that slowly builds up inside the machine wherever it's in contact with water. The first step in descaling is to empty the water reservoir and refill with a mixture of water and descaling solution—this can be a product specifically sold for coffee makers or just vinegar you have at home. Next, run the brew cycle until the reservoir is empty and the “add water” light turns on. (Some models have a descaling mode explicitly for this purpose.) After descaling, it’s important to thoroughly rinse and hand wash all parts of the machine to remove any leftover descaling solution.
Why are there coffee grounds in my cup?
Coffee grounds in your Keurig cup are often the result of a clogged exit needle. The fix is quick and easy, but keep in mind that the needle is extremely sharp and should be handled cautiously. To clean the exit needle, first remove the pod holder from your Keurig device. Second, detach the funnel from the pod holder and locate the small tube underneath the exit needle. Third, use a paper clip or small brush to loosen and remove leftover coffee grounds inside the tube. Finally, rinse the pod holder and funnel in the sink before reassembling and placing back in your device. You can also run a brew cycle with just water afterward as a final measure to ensure the exit needle has been completely unclogged.
Are coffee pods as fresh as regular coffee?
We asked Logan Allender, the Head of Coffee for Atlas Coffee Club, if coffee pods are as fresh as regular coffee. "Typically, no," he says. "But with good seals and usage of a nitrogen purge to displace oxygen, pods should be able to last up to one year. That said, I wouldn't recommend waiting that long to drink it."
Why is my Keurig leaking?
The most common source of a leaky Keurig is the water reservoir. This can be verified a couple of different ways. First, remove the reservoir and inspect the well underneath; if there’s a buildup of water, the leaking is likely caused by a faulty nozzle at the bottom of the reservoir. You can contact Keurig’s customer service for a replacement reservoir, or try to repair it at home by placing an O-ring (also called a toric joint) around the nozzle. The second test is to fill the reservoir with water and hold it over the sink. If it leaks, chances are the reservoir has a crack in it, which is also an issue to contact Keurig’s customer service about.
Does Keurig offer a warranty?
Yes! Keurig offers a limited one-year warranty for all of its brewing devices. The warranty covers issues that arise from general home use, but it does not cover “consequential or incidental damages.” Depending on the defect, Keurig will either replace individual parts or the entire brewer, both free of charge.
Can K-Cups be used twice?
No, K-Cups are not designed to be used more than once. Allender explains that "during the brewing process, the pod is punctured to allow water to both enter and exit. Nearly all of the fun flavors will be extracted during that brew, so future brews would be incredibly weak and watery and a big mess."
Allender adds that a reusable K-Cup is a great alternative—albeit a little more time-consuming—if you're tired of tossing away K-Cups after one use.
What grind size should I use for a reusable K-Cup?
Reusable K-Cups can save money and lead to fresher, tastier coffee, and Allender recommends a medium-fine grind for reusable K-Cups.
"If you are grinding your own coffee, we want to aim for as fine a grind as possible without creating impedance in the cup," he says. "Typically a slightly finer grind than what you use for drip is pretty successful, but if you have your own grinder I would encourage you to find what works best."
Why Trust The Spruce Eats?
Donna Currie is a freelance food writer who specializes in product reviews and recipes. Her work has appeared on Serious Eats, Fine Cooking, and her own recipe blog, Cookistry.com. She's also the author of "Make Ahead Bread," a cookbook meant to simplify the bread-baking process.
This piece was updated by Derek Rose, the coffee and tea expert for The Spruce Eats. He researches a variety of coffee products, from measuring scoops to commercial espresso machines, and interviews field experts for their insight. He typically uses non-electric coffee makers at home, alternating between the Bialetti Moka Express and the Bodum Brazil French Press.
The Spruce Eats commerce writer Jason Horn updated this story with insights from Lab testing. He drinks iced coffee when it's hot out where he lives in Los Angeles, so almost all the time.
Sources
Logan Allender, the Head of Coffee for Atlas Coffee Club, was interviewed for this piece. He joined Atlas Coffee Club in 2018 and has over a decade of experience in the coffee industry. Logan is certified by the Coffee Quality Institute as a Q Grader and Q Processor. Founded in 2015, Atlas Coffee Club is a subscription-based coffee company that roasts and distributes coffee from around the world. The brand also offers Keurig-compatible coffee pods.