What's the Difference Between All the Keurig Coffee Machines?

We break down all 11 machines so you can find the best one for you.

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October 11, 2019
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When the original Keurig coffee maker was introduced a little over 20 years ago it revolutionized the way people make coffee. Instead of a whole carafe, coffee drinkers could now brew a single cup at home in a matter of minutes thanks to a tiny pod. Since then, the line has evolved to include a variety of bells and whistles that can provide more than just a quick cup of joe. We’ve compared models to help you determine the best Keurig for you.

Before diving in, there are two major things to consider when purchasing a Keurig machine.

  • Functionality: Most Keurig coffee makers are designed to brew a single cup of coffee and not much else. If you’re looking for something that can do more than just brew a single cup, you’ll want to skip down to the bottom of this story and look at "Machines That Do More."
  • Coffee Size: If you’ve decided a single-cup brewer is right for you, the next thing you’ll need to consider is how big your cup is. Keurig single-cup machines can range from three to five sizes, or custom sizing, depending on the model.

Once you’ve chosen your functionality and coffee size, your last step is to consider all the specifics: like how much water the reservoir holds, whether you like a strong brew and if you want an automatic on/off function. Don’t worry, we’ve broken those options down, too.

Single-Serve Machines

We've categorized these machines by size options. Pick your preferred variety to get started, then read on to check out the specs to make sure the machine meets your needs.

5 Brewing Sizes

The K-Elite has five size options (4, 6, 8, 10 and 12 ounces) and comes in two colors.

Reservoir: 75 ounces (enough for 9 8-ounce cups)

Strong Brew Option: Yes

Auto-On/Auto-Off: K-Elite has auto-on, which allows you to select a time for your machine to switch on. You can also program the time your machine shuts off automatically after your last brew.

Pods: Compatible with all types of K-Cup pods and My K-Cup refillable filter

Travel Mug: Compatible with travel mug up to 7 inches tall

Other Features: Only the K-Elite allows you to adjust the temperature of your beverage between 187 and 192 degrees. It also has a setting for making iced coffee or tea. This setting brews your K-Cup pod in a way that allows it to retain full flavor even as the ice starts melting in your cup. The K-Elite has hot water on demand, perfect for oatmeal or soup.

4 Brewing Sizes

The K-Select has four size options (6, 8, 10 and 12 ounces) and comes in six colors.

Reservoir: 52 ounces (enough for 6 8-ounce cups), includes water filter

Strong Brew Option: Yes

Auto-On/Auto-Off: K-Select has auto-off option only

Pods: Compatible with all types of K-Cup pods and My K-Cup refillable filter

Travel Mug: Compatible with travel mug up to 7 inches tall

3 Brewing Sizes

The K-Classic has three size options (6, 8 and 10 ounces) and comes in two colors.

Reservoir: 48 ounces (enough for 6 8-ounce cups), removable

Strong Brew Option: Changes brew strength according to the cup size you choose (smaller cup size = stronger brew)

Auto-On/Auto-Off: K-Classic auto-off feature can be programmed to turn off the machine after it has been idle for two hours.

Pods: Compatible with all types of K-Cup pods and My K-Cup refillable filter

Travel Mug: Compatible with travel mug up to 7 inches tall

The K-15 has three size options (6, 8 and 10 ounces) and comes in nine colors at various retailers.

Reservoir: There's no water reservoir, so it must be filled before every use.

Strong Brew Option: No

Auto-On/Auto-Off: K-15 is auto-off after 90 seconds

Pods: Compatible with all types of K-Cup pods and My K-Cup refillable filter

Travel Mug: Compatible with travel mug up to 5.2 inches tall

The K-Compact has three size options (6, 8 and 10 ounces) and comes in one color, black.

Reservoir: 36 ounces (enough for 4 8-ounce cups)

Strong Brew Option: Changes brew strength according to the cup size you choose (smaller cup size = stronger brew)

Auto-On/Auto-Off: K-Compact turns off automatically two hours after the last brew

Pods: Compatible with all types of K-Cup pods and My K-Cup refillable filter

Travel Mug: Compatible with travel mug up to 7 inches tall

Custom Brewing Sizes

The K-Mini brews any cup size between 6 and 12 ounces and comes in two colors from various retailers.

Reservoir: Pour-over 1 cup reservoir

Strong Brew Option: Changes brew strength according to the cup size you choose (smaller cup size = stronger brew)

Auto-On/Auto-Off: K-Mini turns off 90 seconds after the last brew

Pods: Compatible with all types of K-Cup pods

Travel Mug: Compatible with travel mug up to 7 inches tall

Machines That Do More

Coffee, Cappuccino and Latte Machines

These machines make a strong shot of coffee (to mimic espresso) and have a milk frother. K-Café and K-Latte both have integrated milk frothers, but the K-Café makes both hot and cold froth and the K-Latte only makes hot froth. Only the K-Café’s frother is dishwasher safe.

The K-Café can brew 6-, 8-, 10-, and 12-ounce cups of coffee (but all rely on the same amount of coffee, so the larger the cup, the weaker the coffee will be). There is a button for strong coffee and another for a "shot" of concentrated coffee to use as the base of cappuccino and lattes. It has a 60-ounce removable water reservoir and can accommodate a 7-inch travel mug. This machine has an iced coffee setting that allows it to brew a stronger coffee, so that ice doesn’t dilute it.

The K-Latte can brew 6-, 8- and 10-ounce cups of coffee and can also accommodate a 7-inch travel mug. This machine has a 36-ounce removable water reservoir and is sold with a separate milk frother.

Carafe and Single-Serve Combination Machines

Both the K-Duo and K-Duo Plus can brew both single-serve cups of coffee and a whole carafe. They are compatible with K-Cup pods and ground coffee (scooped into a paper or permanent filter). They are not compatible with K-Carafe, K-Mug, Vue or Rivo pods.

Both machines have programmable settings for carafe brewing, so you can set up your machine to auto-brew for up to 24 hours in advance. They also both have a Pause & Pour feature, which automatically pauses mid-brew for 20 seconds allowing you to pour a cup before the full brew cycle is complete. Both machines can brew up to 12-cup carafes and 12-ounce single-serve cups.

The K-Duo has a 12-cup glass carafe, and the coffee for the carafe comes out of a different spout from the single-serve cup function. The machine is also completely stationary, meaning the shape of it cannot be changed.

The K-Duo Plus has a 12-cup thermal carafe, and a reservoir that can be positioned to the right, left, or along the back of the brewer to optimize counter space. The coffee for the carafe and single-serve cup are in the same spot on this machine and can only be brewed one at a time.

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