Keurig B31 Review

Overall Rating
72
Coffee Quality (40%)
70
Design & Features (20%)
65
Durability (20%)
70
Ease of Use (10%)
80
Brand Reputation (10%)
85

The Bottom Line

Keurig's original "Mini" K-Cup model, the B31 has a max 10 oz brew size with its "fill before each use" reservoir. Now discontinued, it's been replaced by the identical-looking K15 and upgraded K-Mini.
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Key Features of the Keurig B31

Key Features of Keurig B31

  • Product Line/System: Keurig 1.0 Classic
  • K-Cup Compatibility: Unlicensed K-Cups, Keurig 2.0 licensed K-Cups, and ground coffee with the My K-Cup
  • Brew Sizes: Up to 10 oz
  • Water Reservoir: 10 oz
  • Water Filter: None
  • Display: Buttons for Brew and Power; LED indicator for Add Water and Lift Handle
  • Temp Control: No
  • Strength Control: No
  • Dimensions: 6.9"W x 10.7"D x 10.8"H
  • Weight: 1.0 lb
  • Other Features: Removable drip tray, comes with K-Cup variety pack

Keurig B31 Overview

Want to know one of the most common Keurig-related questions we're asked?

What's the difference between Keurig's B series and K series brewers?

Answer: Nothing. The switch from B to K was solely a marketing decision as the company realized branding their brewers with a K made more sense. (They're called Keurig, after all.)

Discontinued and replaced by the K15, the B31 truly is mini. Its water reservoir needs to be filled before each use up to its 10 oz max brew size.

The B31 measures less than 11" in every direction with a somewhat narrow 6.9" width that was great when it was first released but seems bulky with the release of Keurig's new 4.5" K-Mini.

Keurig has released over 70 different coffee makers over the years, and only about a dozen of them are still in production and supported by Keurig. Those in-production models include both the K15 and K-Mini, making both preferable to the discontinued B31.

Pros

  • Compact and foolproof to use
  • Handy water measuring tool inside the reservoir to effectively measure out 6, 8, or 10 oz
  • Great for your desk at work, dorm room or bedroom, or anywhere else you want a cup of coffee quickly
  • No pod-scanning technology so brews both licensed and unlicensed K-Cup pods

Cons

  • Discontinued model
  • Not compatible with a water filter
  • Max 10 oz reservoir needs to be refilled before each use

Is the Keurig B31 for you?

Is Keurig B31 for you?

The Keurig B31 is a small, simple coffee maker with no extra features. It's best for occasional coffee drinkers who don't mind measuring out their water and refilling the reservoir before each use. But even then, go with the nearly identical (and still in-production) K15.

If you're looking for Keurig's newest mini coffee maker, check out the K-Mini. It has the same "fill before each use" brew method but includes Keurig's updated brewing system and a larger 12 oz max brew size in a smaller 4.5" package.

If the K10's 6.9" width is fine, you may like the K-Compact. It's a touch larger at 8.2" wide but has a 36 oz removable water reservoir. That's definitely handy if you're a daily coffee drinker.

Keurig B31 Review: An In-Depth Look

Check out the Keurig B31!

Check out Keurig B31!

Keurig B31
Keurig's original "Mini" K-Cup model, the B31 has a max 10 oz brew size with its "fill before each use" reservoir. Now discontinued, it's been replaced by the identical-looking K15 and upgraded K-Mini.

More Keurig Reviews From The Coffee Maven

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