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Scored using Stand Mixers Methodology v3.0
Stand Mixers Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Stand Mixers 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 Stand Mixers Methodology v3.0

Bosch Series 4 MUM54251 review: 41 specs compared

Avg. price:~£210Motor power:900 WBowl capacity:3.9 LNumber of speed levels:7Number of included attachments:8Weight:8.9 kg

Bosch Series 4 MUM54251 Review: Compare 41 technical specifications and 1 expert reviews to see how this product ranks in the Stand Mixers category and whether it is worth buying.

Bosch Series 4 MUM54251
7.5/10

Overall score

Score
7.5/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, best-of lists, ratings from across the web and expert reviews.
How we count it
Parts: Technical score 60%, List score 15%, User score 15%, Reviews 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 81% of models
Score components

60%

7.2

Technical score

15%

9.1

User score

15%

?

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

10%

7.2

Reviews score

â–²Better than 81% of stand mixers
7.8

Value for money

Value for money
7.8/ 10
✕
What it is
An indicator that combines the stand mixer's overall rating with its price.
When it matters
When you are looking for a stand mixer with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 74% of models
Score components

70%

7.5

Overall score

30%

8.6

Price

â–²Better than 74%
7.2

Technical score

Technical score
7.2/ 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 60% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components

35%

7.8

Performance

15%

4.0

Functions

15%

5.2

Bowl

15%

8.4

Accessories

10%

8.0

Design

10%

10

Safety

â–²Better than 78%
7.2

Reviews score

Reviews score
7.2/ 10
✕
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. Big test sites count more, short reviews half as much as full tests. A video review counts half.
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 10% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 59% of models

7.2

Mark 7.8 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

80%

8.5

Average grade

20%

5.0

Popularity

Grades by review (1)
1 review, its grade estimated from the review text. Reviews count 10% of the overall score.
Ratings from across the web count in the User score, not in this score.
â–¼Worse than 59%
9.1

User score

User score
9.1/ 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 8.0, the mark of a weaker rated model in this category.
Share: User score counts 15% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 84% of models

70%

9.0

Rating

30%

9.4

Popularity

â–²Better than 84%
?

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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  • bosch-series-4-mum54251
  • bosch-series-4-mum54251
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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.
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Technical Specifications of stand mixer Bosch Series 4 MUM54251

Technical score
Technical score
7.2/ 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 60% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components:

35%

7.8

Performance

15%

4.0

Functions

15%

5.2

Bowl

15%

8.4

Accessories

10%

8.0

Design

10%

10

Safety

7.2
Reviews score
7.2
User score
9.1
List score
?
Value for money
Value for money
7.8/ 10
✕
What it is
An indicator that combines the stand mixer's overall rating with its price.
When it matters
When you are looking for a stand mixer with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 74% of models
Score components:

70%

7.5

Overall score

30%

8.6

Price

7.8
Mixer type
planetary
Head design
tilt-head
Motor power
900 W
Market range: <350 W – >1.5k W
This stand mixer delivers 900 W of motor power, which is lower than the rated power of 63.4% of stand mixers and equal to that of 1.3% of stand mixers.
Number of speed levels
7
Market range: <6 – >11
This stand mixer offers 7 speed levels, which is more speed settings than on 40.8% of stand mixers and equal to that on 11.2% of stand mixers.
Maximum speed
?
Show more
Bowl capacity
3.9 L
Market range: <4 L – >7.6 L
This stand mixer features a bowl capacity of 3.9 L, which is smaller than the mixing bowl of 91.1% of stand mixers and equal to that of 4.9% of stand mixers.
Dough capacity
2.4 kg
Market range: <1.3 kg – >5 kg
This stand mixer has a dough capacity of 2.4 kg, which is larger than 49.5% of stand mixers and equal to 0.9% of stand mixers.
Bowl material
stainless steel
Splash guard included
yes
This stand mixer has a splash guard, unlike 90.5%.
Dishwasher-safe parts
yes
This stand mixer has dishwasher-safe parts, unlike 85.1%.
Built-in scale
no
This stand mixer does not have built-in scale, unlike 89.5%.
Heating function
no
This stand mixer does not have heating function, unlike 96.6%.
Maximum timer
?
Display
no
This stand mixer does not have a display. 27.2% of stand mixers have a display.
Control type
dial
Show more
Number of included attachments
8
Market range: <3 – >6
This stand mixer comes with 8 included attachments, which is more accessories than with 95.8% of stand mixers and equal to that with 1.9% of stand mixers.
Dough hook included
yes
This stand mixer has a dough hook, unlike 100%.
Flat beater included
yes
This stand mixer has a flat beater, unlike 96.3%.
Wire whisk included
yes
This stand mixer has a wire whisk, unlike 99.5%.
Meat grinder included
yes
This stand mixer includes a meat grinder, unlike 9.1%.
Show more
Height
28.2 cm
Market range: <28.2 cm – >41.9 cm
This stand mixer has an overall height of 28.2 cm, which is lower than the height of 89.1% of stand mixers and equal to that of 5% of stand mixers.
Width
28 cm
Market range: <21 cm – >40.2 cm
This stand mixer measures 28 cm in width, which is narrower than 46.6% of stand mixers and equal in width to 5.5% of stand mixers.
Depth
27.1 cm
Market range: <22 cm – >42 cm
This stand mixer has a depth of 27.1 cm, which is shallower than 63.6% of stand mixers and equal in depth to 4.6% of stand mixers.
Weight
8.9 kg
Market range: <3.98 kg – >13.2 kg
This stand mixer weighs 8.9 kg, which is heavier than 59.8% of stand mixers and equal in weight to 0.5% of stand mixers.
Body material
plastic
Show more
Overload protection
yes
This stand mixer has overload protection, unlike 99.3%.
Safety locking system
yes
This stand mixer has safety locking system, unlike 97.5%.
Automatic shut-off
yes
This stand mixer has automatic shut-off, unlike 57.4%.
Non-slip feet
yes
This stand mixer has non-slip feet, unlike 100%.

Bosch Series 4 MUM54251 vs the average stand mixer

246810TotalPerformanceFunctionsDesignBowlAccessoriesSafety
  • 5 more included attachments
    This stand mixer equips you with more versatile tools out of the box without needing extra purchases than the average stand mixer (8 vs 3).
    8 vs 3
  • 31 dB quieter operation
    This stand mixer runs with noticeably less motor whine, creating a more pleasant kitchen environment than the average stand mixer (44 dB vs 75 dB).
    44 dB vs 75 dB
  • 6.8 cm lower height
    This stand mixer fits more comfortably beneath low kitchen wall cabinets and shelves than the average stand mixer (28.2 cm vs 35 cm).
    28.2 cm vs 35 cm
  • 18.2% higher user score
    User score
    9.1/ 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 8.0, the mark of a weaker rated model in this category.
    Share: User score counts 15% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–² Better than 84% of models

    70%

    9.0

    Rating

    30%

    9.4

    Popularity

    9.1 vs 7.7
  • Includes a meat grinder
    This stand mixer includes a meat grinder (yes), while the average stand mixer does not (no).
  • 4.23 cm shallower depth
    This stand mixer fits cleanly on standard worktops without protruding past the counter edge compared to the average stand mixer (27.1 cm vs 31.3 cm).
    27.1 cm vs 31.325 cm
  • 6.1% better value for money
    Bosch Series 4 MUM54251 has better value for money than the average stand mixer (7.85 vs 7.4).
    7.85 vs 7.4
  • 0.01 m longer power cord
    This stand mixer reaches wall outlets across the countertop with greater freedom than the average stand mixer (1.1 m vs 1.09 m).
    1.1 m vs 1.09 m
  • 18.2% higher user score
    User score
    9.1/ 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 8.0, the mark of a weaker rated model in this category.
    Share: User score counts 15% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–² Better than 84% of models

    70%

    9.0

    Rating

    30%

    9.4

    Popularity

    9.1 vs 7.7
  • 6.1% better value for money
    Bosch Series 4 MUM54251 has better value for money than the average stand mixer (7.85 vs 7.4).
    7.85 vs 7.4
  • 31 dB quieter operation
    This stand mixer runs with noticeably less motor whine, creating a more pleasant kitchen environment than the average stand mixer (44 dB vs 75 dB).
    44 dB vs 75 dB
  • 6.8 cm lower height
    This stand mixer fits more comfortably beneath low kitchen wall cabinets and shelves than the average stand mixer (28.2 cm vs 35 cm).
    28.2 cm vs 35 cm
  • 4.23 cm shallower depth
    This stand mixer fits cleanly on standard worktops without protruding past the counter edge compared to the average stand mixer (27.1 cm vs 31.3 cm).
    27.1 cm vs 31.325 cm
  • 0.01 m longer power cord
    This stand mixer reaches wall outlets across the countertop with greater freedom than the average stand mixer (1.1 m vs 1.09 m).
    1.1 m vs 1.09 m
  • 5 more included attachments
    This stand mixer equips you with more versatile tools out of the box without needing extra purchases than the average stand mixer (8 vs 3).
    8 vs 3
  • Includes a meat grinder
    This stand mixer includes a meat grinder (yes), while the average stand mixer does not (no).
  • 1.1 L smaller bowl capacity
    This stand mixer has a more compact bowl and may require splitting big holiday batches into multiple mixes compared to the average stand mixer (3.9 L vs 5 L).
    3.9 L vs 5 L
  • 100 W less motor power
    This stand mixer provides less motor torque and may strain on stiff, multi-pound dough batches compared to the average stand mixer (900 W vs 1,000 W).
    900 W vs 1,000 W
  • 18.7% heavier
    This stand mixer is heavier than the average stand mixer (8.9 kg vs 7.5 kg). The average stand mixer weighs 7.5 kg.
    8.9 kg vs 7.5 kg
  • 4.0% lower review score
    Reviews score
    7.2/ 10
    ✕
    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. Big test sites count more, short reviews half as much as full tests. A video review counts half.
    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 10% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–¼ Worse than 59% of models

    7.2

    Mark 7.8 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

    80%

    8.5

    Average grade

    20%

    5.0

    Popularity

    Grades by review (1)
    1 review, its grade estimated from the review text. Reviews count 10% of the overall score.
    Ratings from across the web count in the User score, not in this score.
    7.2 vs 7.5
  • 4.0% lower review score
    Reviews score
    7.2/ 10
    ✕
    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. Big test sites count more, short reviews half as much as full tests. A video review counts half.
    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 10% of the overall score.
    Score distribution
    â–¼
    <55-66-77-88-99-10
    â–¼ Worse than 59% of models

    7.2

    Mark 7.8 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

    80%

    8.5

    Average grade

    20%

    5.0

    Popularity

    Grades by review (1)
    1 review, its grade estimated from the review text. Reviews count 10% of the overall score.
    Ratings from across the web count in the User score, not in this score.
    7.2 vs 7.5
  • 100 W less motor power
    This stand mixer provides less motor torque and may strain on stiff, multi-pound dough batches compared to the average stand mixer (900 W vs 1,000 W).
    900 W vs 1,000 W
  • 18.7% heavier
    This stand mixer is heavier than the average stand mixer (8.9 kg vs 7.5 kg). The average stand mixer weighs 7.5 kg.
    8.9 kg vs 7.5 kg
  • 1.1 L smaller bowl capacity
    This stand mixer has a more compact bowl and may require splitting big holiday batches into multiple mixes compared to the average stand mixer (3.9 L vs 5 L).
    3.9 L vs 5 L

Expert reviews

In-depth analysis and verdict from leading tech publications

9.0
kasasbuchfinder.de
≈ estimated
08/02/2017
Owner's review · Attachment set
Verdict
The Bosch MUM54251 is a powerful 900 W machine that whips cream and kneads firm dough well, but its cube cutter leaves leftovers and takes cupboard space.

Third-party reviews

What customers like about Bosch Series 4 MUM54251

  • Highly versatile all-in-one appliance with an extensive range of attachments including a blender, continuous shredder, and a specialized cube cutter.
  • Effective 3D Planetary Mixing system ensures thorough ingredient mixing without leaving dead zones or residue at the bottom or sides of the bowl.
  • The 900-watt motor easily handles standard baking mixtures, light batters, and standard dough quantities.
  • Convenient and user-friendly features like the single-button EasyArmLift and an automatic park position that moves attachments out of the way for clean bowl removal.
  • Compact and lightweight footprint compared to heavy traditional stand mixers, making it easy to store and move around smaller kitchens.
  • Suction-cup feet provide reliable stability and prevent the machine from shaking or moving on the countertop during operation.
  • Many key accessories and attachments are dishwasher-safe, simplifying the post-baking cleanup process.
  • Excellent value for money as it replaces multiple independent kitchen gadgets at an affordable price point.

What customers don't like about Bosch Series 4 MUM54251

  • Not optimized for heavy or dense doughs (like thick bread or pizza dough) over long periods, which can cause the motor to strain or struggle.
  • Certain plastic components, storage lids, and drive mechanism parts feel flimsy and are prone to breaking if accidentally dropped.
  • A lack of built-in premium features compared to newer Series 4 configurations, such as the integrated weighing scales or an active digital display timer.
  • The multi-part attachment setup can be tedious to clean by hand due to small crevices where food or dough buildup accumulates.
  • The standard bundle lacks a secondary mixing bowl, forcing users to wash the single bowl mid-recipe when working on complex multi-stage bakes.

Verdict

The Bosch Series 4 MUM54251 is a highly versatile 900-watt kitchen machine featuring a 3.9-liter stainless steel mixing bowl, 7 speed settings plus a pulse function, and a 3D planetary mixing system that ensures thorough ingredient blending. Key advantages include an extensive, multifunction accessory bundle—comprising a patisserie set, a 1.25-liter plastic blender, a continuous shredder with multiple discs, a citrus juicer, a meat grinder, and a cube cutter—as well as user-friendly additions like an automated EasyArmLift, an automatic accessory parking position, and an integrated cable rewind device. However, its primary drawbacks are a mainly plastic housing construction that may lack the premium feel of full-metal alternatives, and a 900W motor that can struggle or strain when kneading maximum capacities of dense, heavy yeast doughs over extended periods.

Compare Bosch Series 4 MUM54251 with other stand mixers

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