Keurig K400 Review

Overall Rating
87
Coffee Quality (40%)
85
Design & Features (20%)
90
Durability (20%)
85
Ease of Use (10%)
90
Brand Reputation (10%)
85

The Bottom Line

With 10 different brew sizes up to 30 oz, a sizable 70 oz reservoir, and an intuitive color touch display, K400 series brewers made K-Cup coffee easy. Now discontinued, we recommend the Keurig K-Duo Plus instead.
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Key Features of the Keurig K400

Key Features of Keurig K400

  • Product Line/System: Keurig 2.0 Plus
  • K-Cup Compatibility: Keurig 2.0 K-Cup, K-Mug, and K-Carafe pods, ground coffee with the Keurig 2.0 My K-Cup
  • Brew Sizes: 4 oz, 6 oz, 8 oz, 10 oz, 12 oz, 14 oz, 16 oz, 22 oz, 26 oz, 30 oz
  • Water Reservoir: 70 oz
  • Water Filter: Compatible but not included
  • Display: 2.4" color touch display
  • Temp Control: Yes
  • Strength Control: Yes
  • Dimensions: 10.4"W x 13.4"D x 13.6"H
  • Weight: 8.5 lbs
  • Other Features: Removable drip ray, Auto-On/Off, customizable clock, favorites settings, customizable wall paper, high altitude setting

Keurig K400 Overview

In August 2014, Keurig unveiled their 2.0 brewing system, which added 2 new (big) features:

  • Pod-scanning system to lock out unlicensed pods
  • Larger K-Carafe pods for up to 30 oz pots

The Keurig 2.0 brewers came in 4 different series — K200, K300, K400, and K500 — with each series progressively adding more features.

Within each series, Keurig released multiple different models. For example, the K400 series includes the K400, K425, K450, and K475.

Here's the important part: All brewers in each series are exactly the same. That's right, the K400 and K450 are the same machine. The only difference is what's included when you buy the brewer.

Specifically, each model number includes (or doesn't include) these accessories:

  • K-Carafe (the actual carafe, not the pods)
  • Charcoal water filter starter kit
  • Pod variety pack
  • Keurig 2.0 My K-Cup

Our Buyer's Guide section below covers the differences between all 4 series (plus this K400 model versus other K400 brewers).

In this section, let's look at the entire Keurig 2.0 system.

First, all Keurig 2.0 models brew 10 different sizes from 4-30 oz using one of four different types of pods:

  • K-Cup: 4-10 oz
  • K-Mug: 10-16 oz
  • K-Carafe: 22-30 oz

Unfortunately, K-Mug and K-Carafe pods have since been discontinued, which eliminates the major selling point of these brewers.

Second, all Keurig 2.0 models have some type of digital touchscreen interface, Keurig's new Quiet Brew Technology, which actually is less noisy than their original brewers, Strength Control for a stronger cup, and a High Altitude setting.

Pros

  • Capable of brewing both single-serve coffee and carafes up to 30 oz
  • Brews wide range of sizes from 4 oz cup to 30 oz carafe
  • Features Auto-Off, Strong Brew, and 5 Brew Temp settings
  • Color touch display with customizable wallpaper

Cons

  • Discontinued model
  • Part of the Keurig 2.0 series, which has pod-scanning system to lock out unlicensed K-Cup pods
  • Compatible with K-Mug and K-Carafe pods, which Keurig no longer produces, so why get a pod-based carafe brewer when you can only use K-Cup pods?
  • Doesn't come with any accessories

Is the Keurig K400 for you?

Is Keurig K400 for you?

As a discontinued series, it's our duty to provide you with alternatives currently in production. If you're looking at getting a Keurig 2.0 brewer (models K200-K575), take a look at these brewers instead:

  • K-Duo: Keurig's replacement for their 2.0 brewers, the K-Duo brews both single-serve K-Cup coffee up to 12 oz and full carafes up to 60 oz (double the volume of Keurig 2.0 brewers). What the K-Duo loses from 2.0 brewers are the 14-16 oz "large cup" brew sizes and the K-Carafe pod. Instead, you brew carafes by dosing ground coffee into the reusable Gold Tone mesh filter.
  • K-Elite: Keurig's high-end home coffee maker, the K-Elite maxes out at 12 oz (so no full pots) but it has every other premium feature: 75 oz reservoir, Hot Water and Iced brew modes, Strength and Temp Control, a High Altitude setting, and a durable, brushed metal exterior that looks better than any Keurig brewer to date.

As promised above, let's take a deeper look at the differences between the 4 Keurig 2.0 series:

FeatureK200K300K400K500
Reservoir40 oz60 oz70 oz80 oz
Display2.4" b+w touch2.4" b+w touch2.4" color touch2.8" XL color touch
Max K-Cup Brew Size16 oz16 oz16 oz18 oz
Strength ControlYesYesYesYes
Temp ControlNoYesYesYes
Customizable ClockNoYesYesYes
Customizable WallpaperNoYesYesYes
Set FavoritesNoYesYesYes
Hot Water ModeNoNoNoYes
Iced ModeNoNoNoYes
Water Tank NightlightNoNoNoYes

As for the K400-series brewers (this is a Keurig K400 review, after all) here are the differences:

  • K400: Doesn't come with anything
  • K425: Comes with carafe
  • K450: Comes with carafe and K-Cup/K-Carafe variety pack
  • K475: Comes with K-Cup/K-Carafe variety pack and water filter starter kit

Bottom Line: If you're seriously considering the K400 (or any other Keurig 2.0 brewer), just get the K-Duo. It's the same type of brewer, only better. But if you're dead-set on getting the K400, well, just click the button below.

Keurig K400 Review: An In-Depth Look

Check out the Keurig K400!

Check out Keurig K400!

Keurig K400
With 10 different brew sizes up to 30 oz, a sizable 70 oz reservoir, and an intuitive color touch display, K400 series brewers made K-Cup coffee easy. Now discontinued, we recommend the Keurig K-Duo Plus instead.

More Keurig Reviews From The Coffee Maven

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Overall Rating: 84
Keurig's most basic office model, the UL Commercial listed K145 has an underwhelming 48 oz reservoir and max 10 oz brew size, but the Drain Brewer function is handy and its sturdy build makes it great for heavy use.

Keurig K1500

Keurig K1500
Overall Rating: 87
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Keurig K200

Keurig K200
Overall Rating: 84
The base model of the now-discontinued Keurig 2.0 pod-scanning system, K200 series brewers are an affordable option for those who want to brew multi-cup carafes, but we recommend the in-production K-Duo.

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