OVERALL
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Scored using Coffee Machines Methodology v3.0
Coffee Machines Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Coffee Machines Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Coffee Machines Methodology v3.0

Keurig K-Duo Gen 2 review: 75 specs compared

Avg. price:~£310Type:?Water Container Capacity:2.13 LPump Pressure:?Built-in Coffee Grinder:noAutomatic Milk Frother:no

Keurig K-Duo Gen 2 Review: Compare 75 technical specifications to see how this product ranks in the Coffee Machines category and whether it is worth buying.

Keurig K-Duo Gen 2
7.1/10

Overall score

Score
7.1/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, expert reviews, best-of lists, owners and ratings from across the web.
How we count it
Parts: Technical score 45%, Reviews score 20%, List score 15%, Sentiment score 10%, User score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 67% of models
Score components

45%

6.5

Technical score

20%

?

Reviews scoreNot enough data yet, so we use 7.7, the mark of a weaker model in this category

15%

?

List scoreNot enough data yet, so we use 7.5, the mark of a weaker model in this category

10%

?

Sentiment scoreNot enough data yet, so we use 6.8, the mark of a weaker model in this category

10%

8.6

User score

â–²Better than 67% of coffee machines
7.6

Value for money

Value for money
7.6/ 10
✕
What it is
An indicator that combines the coffee machine's overall rating with its cost.
When it matters
When you are looking for a coffee machine with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 58% of models
Score components

70%

7.1

Overall score

30%

8.6

Price

â–¼Worse than 58%
6.5

Technical score

Technical score
6.5/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 45% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 65% of models
Score components

35%

6.7

Performance

25%

4.9

Coffee Preparation

25%

7.1

Features

15%

7.9

Design

â–²Better than 65%
?

Reviews score

Reviews score
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Every review counts the same: written or video, short or full test.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.7 for now.
Share: Reviews count 20% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
Grades by review (0)
We have not found an independent test of this model yet. Until we do, its review part counts as 7.7.
Ratings from across the web count in the User score, not in this score.
No expert tests yet
8.6

User score

User score
8.6/ 10
✕
What it is
How happy buyers are with this model, based on ratings from across the web.
How we count it
Enough data: A model needs at least 1 rating from across the web. Without one, it counts as 7.8, the mark of a weaker rated model in this category.
Share: User score counts 10% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 64% of models

70%

8.0

Rating

30%

9.8

Popularity

â–²Better than 64%
?

List score

List score
7.5/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 15% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (0)
Not in any best-of list yet, so this part counts as 7.5. Models in a list get 8 to 10.
Not in any best-of list yet
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.

What owners say about the Keurig K-Duo Gen 2

Based on 53 owners sharing their experience in online comments

64%positive4%mixed32%negative

Owners value the clear descaling guidance that often fixes the light, though failed reset steps and machine problems frustrate many.

What owners dislike

  • Keurig's manual and descaler bottle instructions did not clear the descale light for owners, who had to find other directions.12
  • The descale light stayed on or would not reset after owners followed the steps, even after running the process on both sides more than once.11
  • Add water light fails to appear7
  • Some owners said the K-cup side or the whole machine stopped working after descaling, with one saying it died afterward.6
  • Owners spent one to three hours troubleshooting the descale light before finding steps that worked.5

Points mentioned by at least 3 owners, most mentioned first.

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Technical Specifications of coffee machine Keurig K-Duo Gen 2

Technical score
Technical score
6.5/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 45% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 65% of models
Score components:

35%

6.7

Performance

25%

4.9

Coffee Preparation

25%

7.1

Features

15%

7.9

Design

6.5
Reviews score
7.7
User score
8.6
List score
?
Value for money
Value for money
7.6/ 10
✕
What it is
An indicator that combines the coffee machine's overall rating with its cost.
When it matters
When you are looking for a coffee machine with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 58% of models
Score components:

70%

7.1

Overall score

30%

8.6

Price

7.6
Power
1,100 W
Market range: <1k W – >1.5k W
This coffee machine provides 1,100 W of heating power, which is lower than the power of 75.1% of coffee machines and equal to that of 7.8% of coffee machines.
Water Container Capacity
2.13 L
Market range: <0.7 L – >2 L
This coffee machine holds up to 2.13 L in its water tank, which is larger than 91.9% of coffee machines and equal to that of 0.2% of coffee machines.
Pump Pressure
?
Heating Time
?
Heating System
?
Show more
Type
?
Works with Powdered Coffee
?
Works with ESE Pods
no
This coffee machine does not accept ESE pods. 20.4% of coffee machines accept ESE pods.
Works with Capsules
yes
This coffee machine accepts coffee capsules. 68% of coffee machines accept coffee capsules.
Capsule System
?
Show more
Water Level Indicator
?
Water Filter
no
This coffee machine does not have a water filter. 30% of coffee machines have a water filter.
Descaling Program
yes
This coffee machine has a descaling programme. 31.2% of coffee machines have a descaling programme.
Cleaning Alert
?
Automatic Milk Circuit Cleaning
no
This coffee machine does not clean its milk circuit automatically. 18.3% of coffee machines offer automatic milk circuit cleaning.
Show more
Built-in Installation
no
Color
black
Vintage Look
no
This coffee machine does not have vintage styling. 10.6% of coffee machines have this look.
Housing Material
?
Drip Tray Material
?
Show more

Keurig K-Duo Gen 2 vs the average coffee machine

246810TotalPerformanceCoffee PreparationFeaturesDesign
  • 0.88 L larger water tank
    This coffee machine has a larger water reservoir than the average coffee machine (2.1 L vs 1.25 L).
    2.13 L vs 1.25 L
  • Accepts coffee capsules
    This coffee machine accepts coffee capsules, while the average coffee machine does not. 32.1% of coffee machines accept coffee capsules.
  • 13.2% higher user score
    User score
    8.6/ 10
    ✕
    What it is
    How happy buyers are with this model, based on ratings from across the web.
    How we count it
    Enough data: A model needs at least 1 rating from across the web. Without one, it counts as 7.8, the mark of a weaker rated model in this category.
    Share: User score counts 10% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–² Better than 64% of models

    70%

    8.0

    Rating

    30%

    9.8

    Popularity

    8.6 vs 7.6
  • 13.2% higher user score
    User score
    8.6/ 10
    ✕
    What it is
    How happy buyers are with this model, based on ratings from across the web.
    How we count it
    Enough data: A model needs at least 1 rating from across the web. Without one, it counts as 7.8, the mark of a weaker rated model in this category.
    Share: User score counts 10% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–² Better than 64% of models

    70%

    8.0

    Rating

    30%

    9.8

    Popularity

    8.6 vs 7.6
  • 0.88 L larger water tank
    This coffee machine has a larger water reservoir than the average coffee machine (2.1 L vs 1.25 L).
    2.13 L vs 1.25 L
  • Accepts coffee capsules
    This coffee machine accepts coffee capsules, while the average coffee machine does not. 32.1% of coffee machines accept coffee capsules.
  • 300 W lower power
    This coffee machine offers lower heating power than the average coffee machine (1,100 W vs 1,400 W).
    1,100 W vs 1,400 W
  • No hot water dispenser
    This coffee machine does not have a hot water dispenser, while the average coffee machine does. 50.5% of coffee machines have a hot water dispenser.
  • 2.58x more expensive
    Keurig K-Duo Gen 2 is more expensive than the average coffee machine (£310 vs £120).
    £310 vs £120
  • 0.5% worse value for money
    Keurig K-Duo Gen 2 has worse value for money than the average coffee machine (7.57 vs 7.6).
    7.57 vs 7.61
  • 2.58x more expensive
    Keurig K-Duo Gen 2 is more expensive than the average coffee machine (£310 vs £120).
    £310 vs £120
  • 0.5% worse value for money
    Keurig K-Duo Gen 2 has worse value for money than the average coffee machine (7.57 vs 7.6).
    7.57 vs 7.61
  • 300 W lower power
    This coffee machine offers lower heating power than the average coffee machine (1,100 W vs 1,400 W).
    1,100 W vs 1,400 W
  • No hot water dispenser
    This coffee machine does not have a hot water dispenser, while the average coffee machine does. 50.5% of coffee machines have a hot water dispenser.

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Overview video
Overview video
Overview video

Third-party reviews

What customers like about Keurig K-Duo Gen 2

  • A 2.13 L water container means fewer refills during a busy morning.
  • It brews from capsules, so there is no grinding or measuring.
  • The removable tank and see-through reservoir make filling easy to check.
  • A descaling program helps keep limescale under control.
  • Sleep mode cuts power while the machine sits idle.
  • Overheat protection guards the machine if it runs too hot.

What customers don't like about Keurig K-Duo Gen 2

  • No milk frother, cappuccino or latte program, so milky drinks are off the menu.
  • The coffee temperature cannot be adjusted.
  • No drip tray full indicator, so you must check the tray yourself.
  • No hot water dispenser, so water for tea comes from a kettle.
  • No pre-infusion step, so the coffee is not soaked before brewing.

Verdict

Households that go through a lot of coffee in a morning will like the 2.13 L water container of the Keurig K-Duo Gen 2, which means fewer trips to the tap. It brews from capsules, so there is no grinding or measuring. The water tank is removable and the reservoir is see-through, which makes filling and checking simple. Descaling has its own program, and the machine shuts itself off after use. Sleep mode cuts power while it sits idle. The trade-off is that it does very little beyond the basics. There is no milk frother, no cappuccino or latte program, and you cannot change the coffee temperature. It fits a family or office kitchen that wants plain coffee in quantity and does not need milky drinks or fine control over the cup.

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