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COMFEE Toaster Oven (CFO-BB101) vs Mueller 4 Slice Side-by-Side Comparison

Comfee Toaster Oven vs Mueller 4 Slice. The latter costs slightly more than the former but we think it’s always the better small-size choice.

By , , and Updated

COMFEE Toaster Oven

Mueller 4 Slice

COMFEE Toaster Oven (CFO-BB101) vs Mueller 4 Slice

Overall Verdict

4.5
Overall Score
6.1
Overall Score
  • Performance (50%)5.3
  • Design (25%)2.9
  • Usability (25%)4.5
  • Performance (50%)7.0
  • Design (25%)5.3
  • Usability (25%)5.2

The Comfee Toaster Oven (CFO-BB101) is our smallest machine while the Mueller 4 Slice Toaster Oven (MT-175) is our best value small pick. The latter costs slightly more than the former but we think it’s always the better choice if you’re looking for a small toaster oven.

As standard small units, the two only have two quartz heating elements and basic control dials. Interestingly, both have a detachable crumb tray that makes cleaning the interior easier—something usually tricky for small units.

We do have to point out, however, that the Mueller has a higher build quality than the Comfee. This is shown in the Mueller’s thicker casing and more accurate timer and temperature dials.

The fact that it was difficult for us to input a precise timer and temperature didn’t bode well for the Comfee in our performance tests. The Mueller didn’t have this problem and it had very impressive scores in toasting bread, baking pizza, and roasting whole chicken.

Unfortunately, both toaster ovens don’t have a high enough power output to do well in baking fries.

Pros & Cons

  • Extra-small size
  • Energy-saving
  • Quartz heating elements have safeguards
  • Cool-touch door handle
  • Stay-on feature
  • Detachable 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 convection fan
  • No internal lighting
  • No safety mechanism for the door
  • No convection fan
  • No internal lighting
  • No safety mechanism for the door

Key Specs

Dimensions
L13.85 x W11.18 x H8 inches
L14.96 x W11.61 x H8.86 inches
Weight
5.4 lbs (2.4 kg)
9.0 lbs (4.1 kg)
Control Type
2 control knobs
3 control knobs
Temperature
150°F - 450°F
150°F - 450°F
Timer
1 minute - 30 minutes + stay-on
1 minute - 30 minutes + stay-on
Cooking Functions
3
4

Where to Buy?

Price at publication
$42.50
$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
5.3
7.0

Toast

4.5
7.5
COMFEE CFO-BB101 ToastFrom left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
On the left: 2m 45s; In the middle: 3m 50s; On the right: 4m 10s
COMFEE CFO-BB101 ToastFrom 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 white COMFEE CFO-BB101 Compact 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.
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
Medium
⅓ to Dark
Cooking Time
3m 50s
4m
Second Batch
3m 50s
4m
Convection
No
No

Pizza

5.0
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.
The cross surface of a slice of toast oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers.
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
11m
9m
Convection
No
No

Roasted Whole Chicken

7.1
7.0
A whole roasted chicken using the Comfee CFO-BB101 Compact Toaster Oven on a grooved silver baking pan on a white background.
A whole roasted chicken using the Comfee CFO-BB101 Compact Toaster Oven on a grooved 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 183°F and 189°F.
Seven pieces of a carved chicken including a carcass, two breasts, two wings, and two thighs on a silver 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.
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 20m
1h 20m
Convection
No
No

Baked French Fries

4.7
3.6
Pieces of baked french fries using the Comfee CFO-BB101 Toaster Oven on a grooved silver baking pan on a white background.
Pieces of baked french fries using the Comfee CFO-BB101 Toaster Oven on a grooved silver baking pan on a white background.
A close-up of pieces of baked french fries using the Comfee CFO-BB101 on a grooved silver baking pan on a white background.
Four pieces of broken-up baked french fries are stacked on top of pieces of whole fries on a grooved silver 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
35 m
27 m
Convection
No
No

Design

Overall Design Scoring
2.9
5.3

In The Box

An oven rack, a user manual, a white Comfee CFO-BB101 Compact Toaster Oven, a box, and a grooved silver 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

8.0
5.0
A closed front of the white Comfee CFO-BB101 Compact Toaster Oven with exterior measurements on a white background.
A closed front of the white Comfee CFO-BB101 Compact Toaster Oven with exterior measurements on a white background.
The front of a closed white Comfee CFO-BB101 Compact Toaster Oven has a control panel and the right side has holes.
The back and left sides of the Comfee CFO-BB101 Compact Toaster Oven have holes. The back has a power cord and two buffers.
The top of the white Comfee CFO-BB101 Compact Countertop Toaster Oven on a grey background.
On a grey background, the bottom of the Comfee CFO-BB101 Toaster Oven has a detachable crumb tray, four stands, and holes.
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
5.4 lbs (2.4 kg)
9.0 lbs (4.1 kg)
Length
13.8" (35.2 cm)
15.0" (38.0 cm)
Width
11.2" (28.4 cm)
11.6" (29.5 cm)
Height
8.0" (20.3 cm)
8.9" (22.5 cm)
Material
Stainless steel
Stainless steel
Color
White
Gray
Door Handle
cool-touch
Cool-touch
Tray Indicators
No
No
Crumb Tray
Detachable
Detachable

Control Panel

The control panel of the Comfee CFO-BB101 Toaster Oven has a control dial for temperature/mode above and one for timer below.
The control panel of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 control knobs for temperature, function, and timer.
Type
 2 control knobs
3 control knobs
Temperature
150°F - 450°F
150°F - 450°F
Timer
1 minute - 30 minutes + stay-on
1 minute - 30 minutes + stay-on
Indicator Light
Yes
Yes
Status Bar
No
No
Light Toggle
No
No
Convection Toggle
No
No
Rotation Toggle
No
No
Automatic Preheat
No
No
Audio Cues
No
No

Cooking Functions

The mode dial of the white Comfee CFO-BB101 Compact Toaster Oven has 3 cooking functions including Toast, Bake, and Broil.
The function dial of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 cooking functions including Bake, Broil, and Toast.

Interior

1.0
1.0
The Comfee CFO-BB101 Compact Toaster Oven’s cooking chamber has 2 quartz heating elements with guards and 2 guide rails.
The Comfee CFO-BB101 Compact Toaster Oven’s cooking chamber has 2 quartz heating elements with guards and 2 guide rails.
The bottom quartz heating element with guard and 2 guide rails on the left wall of the Comfee CFO-BB101’s cooking chamber.
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
2 quartz
2 quartz
Convection Fan
No
No
Lighting
No
No
Tray Levels
2
2
Rotisserie
No
No
Safety Hook
No
No

Power Cord

A two-pronged plug power cord. In the background is the white Comfee CFO-BB101 Compact Countertop Toaster Oven.
A two-pronged plug power cord. In the background is the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.
Length
26.4" (67.0 cm)
30.7" (78.0 cm)
Type
2-prong plug
2-prong plug
Power
1000 W
1100 W
Rated Output
120 V ~ 60 Hz
120 V ~ 60 Hz

Accessories

A stainless steel baking rack of the white Comfee CFO-BB101 Compact Countertop 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
10.2" (25.8 cm)
10.5" (26.7 cm)
Width
8.3" (21.0 cm)
8.8" (22.4 cm)
Height
0.4" (1.1 cm)
0.5" (1.3 cm)
Material
Stainless steel
Stainless steel
Dishwasher Safe
Yes
Yes

Build Quality

2.0
8.0
The front of an opened white Comfee CFO-BB101 Compact Toaster Oven with an oven rack and a grooved silver 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 white Comfee CFO-BB101 Compact 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
10.2" (25.8 cm)
10.6" (27.0 cm)
Width
9.6" (24.5 cm)
9.8" (25.0 cm)
Height
6.9" (17.5 cm)
7.5" (19.0 cm)

Usability

Overall Usability Scoring
4.5
5.2

User Control

5.0
6.0

Easeof Use

4.0
4.0

Cleanability

5.0
7.0
Grease on the glass door of a closed white Comfee CFO-BB101 Compact Countertop Toaster Oven.
Grease on the glass door of a closed white Comfee CFO-BB101 Compact Countertop Toaster Oven.
Grease on the right wall of the white Comfee CFO-BB101 Compact Countertop Toaster Oven’s cooking chamber.
Grease and chicken skin stuck to the grooved silver baking pan of the white Comfee CFO-BB101 Compact Countertop Toaster Oven.
A cleaned grooved silver baking pan of the white Comfee CFO-BB101 Compact Countertop Toaster Oven with some discoloration.
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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