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Breville BOV450XL vs Mueller 4 Slice Toaster Oven Side-by-Side Comparison

Breville BOV450XL vs Mueller 4 Slice Toaster Oven. The differences between our definitive best small toaster oven and our best value small pick.

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Breville BOV450XL

Mueller 4 Slice

Breville BOV450XL vs Mueller 4 Slice Toaster Oven

Overall Verdict

6.5
Overall Score
6.1
Overall Score
  • Performance (50%)6.8
  • Design (25%)6.4
  • Usability (25%)6.2
  • Performance (50%)7.0
  • Design (25%)5.3
  • Usability (25%)5.2

The contest between the Breville BOV450XL and the Mueller 4 Slice (MT-175) showcases the differences between our definitive best small toaster oven and our best value small pick. Even though the first one is more than twice the price of the first one, it provides some extra features on top of a good cooking performance.

Both toaster ovens have a high build quality shown in their thick casing for good heat insulation and overall sturdy structure. In addition to the standard three analog control dials, the Mueller has a detachable crumb tray that helps with cleaning the interior, which is usually tricky for small units. 

On the other hand, the Breville has a slide-out crumb tray and a non-stick interior for easy cleaning. Moreover, it has a digital display, precise timer and temperature control buttons, and extra toggle switches for internal lighting, frozen foods, and temperature conversion.

The Mueller’s performance was quite formidable, especially considering that it has a lower power output and less heating elements than the Breville. They were equal in toasting bread and roast whole chicken.

The Breville lost to the Mueller in baking pizza, but only because its cooking time was too long for our standard. Most importantly however, the Breville was able to improve upon a common weakness of small units—having a low power output for our baked frozen fries test.

Pros & Cons

  • Unique feature buttons
  • Non-stick interior
  • High-contrast digital display
  • Sturdy construction
  • Cool-touch door handle
  • Easy-to-clean stainless steel exterior
  • Convenient slide-out crumb tray
  • Lightweight and small size
  • Easy-to-clean stainless steel exterior
  • Cool-touch door handle
  • Simple control knobs
  • Stay-on feature
  • Quartz heating elements have safeguards
  • Energy-saving
  • No interior lighting
  • No convection fan
  • Inconsistent heating elements
  • No convection fan
  • No internal lighting
  • No safety mechanism for the door

Key Specs

Dimensions
L15.74 x W14.17 x H8.86 inches
L14.96 x W11.61 x H8.86 inches
Weight
10.0 lbs (4.5 kg)
9.0 lbs (4.1 kg)
Control Type
LCD display + 1 control dial + 8 buttons
3 control knobs
Temperature
120°F - 450°F
150°F - 450°F
Timer
1 minute - 2 hours
1 minute - 30 minutes + stay-on
Cooking Functions
8
4

Where to Buy?

Price at publication
$154.13
$64.55

*You help support HealthyKitchen101's product testing and reviews by purchasing from our retail partners.

Analysis and Test Results

Performance

Overall Performance Scoring
6.8
7.0

Toast

7.8
7.5
From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
On the left: Level 3; In the middle: Level 4; On the right: Level 5
From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
The top and bottom of the best four pieces of toast from the stainless steel Breville BOV450XL Mini Smart Toaster Oven.
On the left are the top and bottom of four pieces of toast from the first batch, and on the right are from the second batch.
Mueller 4 Slice Toaster Oven Toast Test
From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
The top and bottom of the best four pieces of toast from the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.
On the left are the top and bottom of four pieces of toast from the first batch, and on the right are from the second batch.
Function
Toast
Toast
Number of Slices
4
4
Toast Level
4/7
⅓ to Dark
Cooking Time
3m
4m
Second Batch
2m 36s
4m
Convection
No
No

Pizza

5.5
7.6
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
Two slices of oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top of one another.
Two hands break apart a slice of pizza with melty cheese, meat, and green bell peppers on top baked using a toaster oven.
Mueller 4 Slice Toaster Oven Pizza Test
Mueller 4 Slice Toaster Oven PizzaA toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
Two slices of oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top of one another.
Two hands break apart a slice of pizza with cheese, meat, onions, and green bell peppers on top baked using a toaster oven.
Function
 Bake
Toast
Temperature
450°F
450°F
Cooking Time
10m 30s
9m
Convection
No
No

Roasted Whole Chicken

6.6
7.0
A whole roasted chicken using a toaster oven on an enamel baking pan on a white background.
A whole roasted chicken using a toaster oven on an enamel baking pan on a white background.
A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 168°F and 171°F.
Seven pieces of a carved chicken including a carcass, two breasts, two wings, and two thighs on an enamel baking pan.
The chicken thigh is slightly pink near the bone. In the white background is the rest of the roasted chicken on a baking pan.
Mueller 4 Slice Toaster Oven Whole Roasted Chicken Test
A whole roasted chicken using the Mueller MT-175 Toaster Oven backside up on a silver baking pan on a white background.
A whole roasted chicken using the Mueller MT-175 Toaster Oven belly up on a silver baking pan on a white background.
A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 185°F and 192°F.
Eight pieces of a carved chicken including two carcass halves, two breasts, two wings, and two thighs on a baking pan.
Two hands pulling apart a roasted chicken thigh. In the white background is the rest of the roasted chicken on a baking pan.
Function
Bake
Toast
Temperature
350°F
350°F
Cooking Time
1h 5m
1h 20m
Convection
No
No

Baked French Fries

6.5
3.6
Pieces of baked french fries using a toaster oven on an enamel baking pan on a white background.
Pieces of baked french fries using a toaster oven on an enamel baking pan on a white background.
A close-up of pieces of baked french fries using a toaster oven on an enamel baking pan on a white background.
Six pieces of broken-up baked french fries are stacked on top of pieces of whole fries on an enamel baking pan.
Mueller 4 Slice Toaster Oven Baked French Fries Test
Mueller 4 Slice Toaster Oven Baked French FriesPieces of baked french fries using the Mueller MT-175 Toaster Oven on a grooved silver baking pan on a white background.
A close-up of pieces of baked french fries using the Mueller MT-175 Toaster Oven on a baking pan on a white background.
Ten pieces of broken-up baked french fries are stacked on top of pieces of whole fries on a grooved silver baking pan.
Function
Bake
Toast
Temperature
400°F.
400°F
Cooking Time
25 m
27 m
Convection
No
No

Design

Overall Design Scoring
6.4
5.3

In The Box

An oven rack, 5 pieces of document, the Breville BOV450XL Mini Smart Toaster Oven, a box, and an enamel baking pan.
A box, the Mueller MT-175 4-Slice Toaster Oven, a recipe booklet, a baking pan, an oven rack, a user manual, and a brochure.

Exterior

6.0
5.0
A closed front of the Breville BOV450XL Mini Smart Toaster Oven with exterior measurements on a white background
A closed front of the Breville BOV450XL Mini Smart Toaster Oven with exterior measurements on a white background
The front of a closed stainless steel Breville BOV450XL Mini Smart Toaster Oven has a control panel and the right has holes.
The back and left sides of the Breville BOV450XL Toaster Oven have holes. The back has a power cord and two buffers.
The top of the stainless steel Breville BOV450XL Mini Smart Toaster Oven on a grey background.
On a grey background, the bottom of the stainless steel Breville BOV450XL Mini Smart Toaster Oven has four stands and holes.
View from the top onto a slide-out crumb tray of the Breville BOV450XL Mini Smart Toaster Oven on a grey background.
A closed front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with exterior measurements on a white background.
A closed front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with exterior measurements on a white background.
Mueller 4 Slice Toaster Oven ExteriorThe front of a closed stainless steel Mueller MT-175 4-Slice Toaster Oven has a control panel and the right has holes.
The back and left sides of the Instant Omni Plus 18L have air ventilation holes. The back has a power cord and two buffers.
The top, front, and right sides of the Black+Decker TO1760SS 4-Slice Natural Convection Toaster Oven on a white background.
On a white background, the bottom of the Mueller MT-175 Toaster Oven has a detachable crumb tray, four stands, and holes.
The detached crumb tray of the stainless steel Black+Decker TO1760SS 4-Slice Countertop Toaster Oven on a white background.
Weight
10.0 lbs (4.5 kg)
9.0 lbs (4.1 kg)
Length
15.7" (40.0 cm)
15.0" (38.0 cm)
Width
14.2" (36.0 cm)
11.6" (29.5 cm)
Height
8.9" (22.5 cm)
8.9" (22.5 cm)
Material
Stainless steel
Stainless steel
Color
Silver
Gray
Door Handle
cool-touch
Cool-touch
Tray Indicators
Yes
No
Crumb Tray
Slide-out
Detachable

Control Panel

The Breville BOV450XL Mini Smart Toaster Oven’s control panel has an LCD, 1 cooking functions’ control dial, and 8 buttons
The control panel of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 control knobs for temperature, function, and timer.
Type
 LCD display + 1 control dial + 8 buttons
3 control knobs
Temperature
120°F - 450°F
150°F - 450°F
Timer
1 minute - 2 hours
1 minute - 30 minutes + stay-on
Indicator Light
No
Yes
Status Bar
No
No
Light Toggle
No
No
Convection Toggle
No
No
Rotation Toggle
No
No
Automatic Preheat
Yes
No
Audio Cues
No
No

Cooking Functions

The function dial of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 cooking functions including Bake, Broil, and Toast.

Interior

4.0
1.0
The Breville BOV450XL ’s cooking chamber is black and has 4 quartz heating elements with guards and 2 guide rails.
The Breville BOV450XL ’s cooking chamber is black and has 4 quartz heating elements with guards and 2 guide rails.
The cooking chamber’s right wall of the Breville BOV450XL has 2 guide rails.
Mueller 4 Slice Toaster Oven InteriorThe Mueller MT-175 4-Slice Toaster Oven’s cooking chamber has 2 quartz heating elements with guards and 2 guide rails.
Mueller 4 Slice Toaster Oven InteriorThe Mueller MT-175 4-Slice Toaster Oven’s cooking chamber has 2 quartz heating elements with guards and 2 guide rails.
The Mueller MT-175 Oven has 1 bottom heating element with a guard and 2 guide rails on its right cooking chamber wall.
Heating Elements
4 quartz
2 quartz
Convection Fan
No
No
Lighting
No
No
Tray Levels
3
2
Rotisserie
No
No
Safety Hook
No
No

Power Cord

A three-pronged plug power cord. In the background is the stainless steel Breville BOV450XL Mini Smart Toaster Oven.
A two-pronged plug power cord. In the background is the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.
Length
40.9" (104.0 cm)
30.7" (78.0 cm)
Type
3-prong plug
2-prong plug
Power
1800 W
1100 W
Rated Output
110 V - 120 V ~ 60 Hz
120 V ~ 60 Hz

Accessories

A stainless steel baking rack of the stainless steel Breville BOV450XL Mini Smart Toaster Oven on a grey background.
A stainless steel baking rack of the Mueller MT-175 4-Slice Countertop Toaster Oven on a white background.
Length
11.5" (29.2 cm)
10.5" (26.7 cm)
Width
10.3" (26.3 cm)
8.8" (22.4 cm)
Height
0.3" (0.7 cm)
0.5" (1.3 cm)
Material
Stainless steel
Stainless steel
Dishwasher Safe
Yes
Yes

Build Quality

8.0
8.0
The front of an opened stainless steel Breville BOV450XL Mini Smart Toaster Oven with a baking rack and a baking pan.
The front of an opened stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven with an oven rack and baking pan.

Capacity

An opened front of the Breville BOV450XL Mini Smart Toaster Oven with interior measurements on a white background.
An opened front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with interior measurements on a white background.
Length
11.5" (29.2 cm)
10.6" (27.0 cm)
Width
11.0" (27.9 cm)
9.8" (25.0 cm)
Height
6.7" (17.0 cm)
7.5" (19.0 cm)

Usability

Overall Usability Scoring
6.2
5.2

User Control

8.0
6.0

Easeof Use

4.0
4.0

Cleanability

9.0
7.0
Grease on the back of the stainless steel Breville BOV450XL Mini Smart Toaster Oven’s glass door.
Grease on the back of the stainless steel Breville BOV450XL Mini Smart Toaster Oven’s glass door.
Brushing the upper heating element’s guards of the stainless steel Breville BOV450XL Mini Smart Toaster Oven’s glass door.
Grease and chicken skin stuck on the enamel baking pan of the stainless steel Breville BOV450XL Mini Smart Toaster Oven.
The cleaned enamel baking pan of the stainless steel Breville BOV450XL Mini Smart Toaster Oven.
Mueller 4 Slice Toaster Oven CleanabilityPermanent stains on the left cooking chamber’s ceiling and the upper heating element’s guard of the Mueller MT-175 Oven.
Mueller 4 Slice Toaster Oven CleanabilityPermanent stains on the left cooking chamber’s ceiling and the upper heating element’s guard of the Mueller MT-175 Oven.
Permanent stains on the right cooking chamber’s ceiling and the upper heating element’s guard of the Mueller MT-175 Oven.
The cleaned grooved silver baking pan of the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.

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Behind the Comparison

Headshot of Alan Nguyen
Alan NguyenReviewer

Alan Nguyen is a writer and product reviewer at HealthyKitchen101. His major in English language teaching taught him to present concise information. In addition to his cooking hobby, he values the practical aspects of household appliances.

Headshot of Lap Vo
Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Headshot of Tuyet Pham
Tuyet PhamProfessional Chef

Tuyet Pham is an award-winning Saigonese chef passionate about delicious and healthful foods. At HealthyKitchen101, she develops recipes and collaborates with our Research, Testing, and Review lab to evaluate the performance of cooking appliances. Her assessments add a strong authoritative voice to our product scoring process.

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