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Black+Decker Convection (CTO6335S) vs Mueller 4 Slice Toaster Oven Side-by-Side Comparison
![Black+Decker Convection (CTO6335S) vs Mueller 4 Slice Toaster Oven](https://cdn.shouldit.com/reviews/images/toaster-ovens/clfqgsl8l003ple88dklv193o.jpg)
Overall Verdict
The Black+Decker Convection Toaster Oven (CTO6335S) and the Mueller 4 Slice Toaster Oven (MT-175) have some interesting strengths and weaknesses of their own. As our best budget toaster oven and our best-value small pick, their overall scores don’t differ too much from one another.
Design-wise, the Mueller is simply an analog toaster oven with 3 control knobs. Meanwhile, the Black+Decker has an LCD and 13 control buttons for more precise adjustments of timer and temperature.
The Mueller has a neat detachable crumb tray which makes it easy to clean, especially for a small toaster oven. On the other hand, the Black+Decker has a large cooking chamber to minimize grease splashing to the walls. Both ovens don’t have an interior light though.
The most interesting aspect between these two toaster ovens is that their performance scores are equal. Upon a closer look, the Black+Decker has the added benefits of having a convection system and more heating elements, resulting in higher scores in roasting whole chicken and baking fries. In contrast, the Mueller has just the right balance of capacity and power to score higher in toasting bread and baking pizza, both of which don’t require convection.
Pros & Cons
- Large capacity
- Highly affordable
- Easy-to-clean stainless steel exterior
- High-contrast digital display
- Sturdy exterior
- Cool-touch door handle
- 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
- Convection fan isn’t all-applicable
- No internal lighting
- Buttons not reliably responsive
- No convection fan
- No internal lighting
- No safety mechanism for the door
Key Specs
Where to Buy
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Analysis and Test Results
Performance
Toast
![From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl9dt5c38000rhq885xw6cq9g.jpg)
![From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl9dt5c38000rhq885xw6cq9g.jpg?w=256&q=80)
![The top and bottom of the best four pieces of toast from the stainless steel Black+Decker CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8fp47qf000d1e882rhhe29u.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8fp4h5e000e1e8899xv15x0.jpg?w=256&q=80)
![Mueller 4 Slice Toaster Oven Toast Test](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla994mcy0000xh8898g859kd.jpg?w=256&q=80)
![From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla6m6z2q001y6s886iig23td.jpg?w=256&q=80)
![The top and bottom of the best four pieces of toast from the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla6m7jj3001z6s887wgpcsyy.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla6m7wjc00206s889v375wns.jpg?w=256&q=80)
Pizza
![A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgiflf0010tp884hfuh7rj.jpg)
![A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgiflf0010tp884hfuh7rj.jpg?w=256&q=80)
![Two slices of oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top of one another.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgio5n0011tp887mfl1ybv.jpg?w=256&q=80)
![Two hands break apart a slice of pizza with melty cheese, meat, and green bell peppers on top baked using a toaster oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgiwfq0012tp88fy1k0jkx.jpg?w=256&q=80)
![Mueller 4 Slice Toaster Oven Pizza Test](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla810o9l00012p884u79cnqv.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vd1ll0000uj8863ehbb6u.jpg?w=256&q=80)
![Two slices of oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top of one another.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vdg910001uj8884q2a4e3.jpg?w=256&q=80)
![Two hands break apart a slice of pizza with cheese, meat, onions, and green bell peppers on top baked using a toaster oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vdpby0002uj8890mz7xhy.jpg?w=256&q=80)
Whole Roasted Chicken
![A whole roasted chicken using a toaster oven on a silver broiling rack and baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgtfsq0013tp88azb153sm.jpg)
![A whole roasted chicken using a toaster oven on a silver broiling rack and baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgtfsq0013tp88azb153sm.jpg?w=256&q=80)
![A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 189°F and 192°F.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgtpii0014tp88f3rl8oud.jpg?w=256&q=80)
![Seven pieces of a carved chicken including a carcass, two breasts, two wings, and two thighs on a silver baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgu24n0015tp8852h5feqh.jpg?w=256&q=80)
![Two hands pulling apart a roasted chicken thigh. In the white background is the rest of the roasted chicken on a baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wguaks0016tp888pl1fr12.jpg?w=256&q=80)
![Mueller 4 Slice Toaster Oven Whole Roasted Chicken Test](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vs0no0008uj88hr9kgak7.jpg?w=256&q=80)
![A whole roasted chicken using the Mueller MT-175 Toaster Oven backside up on a silver baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vkafz0003uj883466bt2t.jpg?w=256&q=80)
![A whole roasted chicken using the Mueller MT-175 Toaster Oven belly up on a silver baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vklll0004uj88c2zvbdr4.jpg?w=256&q=80)
![A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 185°F and 192°F.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vkvec0005uj88ci1l10g1.jpg?w=256&q=80)
![Eight pieces of a carved chicken including two carcass halves, two breasts, two wings, and two thighs on a baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vlkud0006uj884yfe6bhx.jpg?w=256&q=80)
![Two hands pulling apart a roasted chicken thigh. In the white background is the rest of the roasted chicken on a baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vlvk10007uj880yvffhwi.jpg?w=256&q=80)
Baked French Fries
![Pieces of baked french fries using a toaster oven on a silver baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgxnlr0017tp8810xq9n7y.jpg)
![Pieces of baked french fries using a toaster oven on a silver baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgxnlr0017tp8810xq9n7y.jpg?w=256&q=80)
![A close-up of pieces of baked french fries using a toaster oven on a silver baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgxv660018tp882rtddhvm.jpg?w=256&q=80)
![Six pieces of broken-up baked french fries are stacked on top of pieces of whole fries on a silver baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl8wgyjgg0019tp88fmc684cn.jpg?w=256&q=80)
![Mueller 4 Slice Toaster Oven Baked French Fries Test](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7zpywp00002p88dchi2tlk.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vuz2y0009uj8850c9653x.jpg?w=256&q=80)
![A close-up of pieces of baked french fries using the Mueller MT-175 Toaster Oven on a baking pan on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vv717000auj8896ju0feb.jpg?w=256&q=80)
![Ten pieces of broken-up baked french fries are stacked on top of pieces of whole fries on a grooved silver baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vvfhw000buj88hj2aga1u.jpg?w=256&q=80)
Design
In the Box
![An oven rack, a user manual, the BLACK+DECKER CTO6335S Convection Toaster Oven, a box, a baking pan, and a broiling rack.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clcty0rov0005km881vmcfjhu.jpg)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7vwjgn000cuj887ee2788i.jpg)
Exterior
![A closed front of the Black+Decker CTO6335S Convection Toaster Oven with exterior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clbul1jwj00004x883s5o7hsd.jpg)
![A closed front of the Black+Decker CTO6335S Convection Toaster Oven with exterior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clbul1jwj00004x883s5o7hsd.jpg?w=256&q=80)
![The front of a closed Black+Decker CTO6335S Convection Toaster Oven has a control panel and the right has ventilation holes.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl6fzq3pb000pek88ecg1bcab.jpg?w=256&q=80)
![The back and left sides of the Black+Decker CTO6335S Toaster Oven. The back has air ventilation holes and two black buffers.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bz1dvu000i4k883mpvaw6z.jpg?w=256&q=80)
![A closed front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with exterior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clc00fl4b001h6288hwxuct9t.jpg)
![A closed front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with exterior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clc00fl4b001h6288hwxuct9t.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w2ta0000duj886l37d0vt.jpg?w=256&q=80)
![The back and left sides of the Instant Omni Plus 18L have air ventilation holes. The back has a power cord and two buffers.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w32kx000euj883lbk2a0y.jpg?w=256&q=80)
![The top, front, and right sides of the Black+Decker TO1760SS 4-Slice Natural Convection Toaster Oven on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w3ajx000fuj88ebsjghc9.jpg?w=256&q=80)
![On a white background, the bottom of the Mueller MT-175 Toaster Oven has a detachable crumb tray, four stands, and holes.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w3j43000guj885vib0ulh.jpg?w=256&q=80)
![The detached crumb tray of the stainless steel Black+Decker TO1760SS 4-Slice Countertop Toaster Oven on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w3r0k000huj887f21427y.jpg?w=256&q=80)
Control Panel
![The BLACK+DECKER CTO6335S Toaster Oven’s control panel has an LCD and 13 buttons for 8 cooking functions and 5 features.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bz52fd000j4k88akqkgzkz.jpg)
![The control panel of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 control knobs for temperature, function, and timer.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w5yxo000iuj88c9rc0qlg.jpg)
Cooking Functions
![The BLACK+DECKER CTO6335S’s cooking functions include Cookies, Pizza, Frozen snacks, Potato, Bake, Broil, Toast, and Bagel.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl6g01366000qek885ydqhu5q.jpg)
![The function dial of the Black+Decker TO1760SS 4-Slice Toaster Oven has 3 cooking functions including Bake, Broil, and Toast.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7w8a0t000juj88g0ok4t9g.jpg)
Interior
![The BLACK+DECKER CTO6335S’s cooking chamber has 4 quartz heating elements with guards, 2 levels, and a convection fan cavity.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bzb4d7000k4k883k8fb13x.jpg)
![The BLACK+DECKER CTO6335S’s cooking chamber has 4 quartz heating elements with guards, 2 levels, and a convection fan cavity.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bzb4d7000k4k883k8fb13x.jpg?w=256&q=80)
![The stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven’s cooking chamber has a convection fan cavity on the right.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bzc44o000l4k88ho15ehbu.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wa6qd000kuj882tsjf3ih.jpg)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wa6qd000kuj882tsjf3ih.jpg?w=256&q=80)
![The Mueller MT-175 Oven has 1 bottom heating element with a guard and 2 guide rails on its right cooking chamber wall.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wandl000luj885k1p71tf.jpg?w=256&q=80)
Power Cord
![A three-pronged plug power cord. In the background is the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bzesks000m4k88f8067n0d.jpg)
![A two-pronged plug power cord. In the background is the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wc2ax000muj882kld7g9i.jpg)
Accessories
![A stainless steel baking rack of the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven on a grey background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5bzm9v1000n4k88g2fk5x4e.jpg)
![A stainless steel baking rack of the Mueller MT-175 4-Slice Countertop Toaster Oven on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7we3vl000nuj885vhl2dvb.jpg)
Build Quality
![The front of an opened BLACK+DECKER CTO6335S Convection Toaster Oven with a baking rack, a baking pan, and a broiling rack](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl6egj0x80004ek88gu66dy0w.jpg)
![The front of an opened stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven with an oven rack and baking pan.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7whzmu000puj88h8knc3vf.jpg)
Capacity
![An opened front of the BLACK+DECKER CTO6335S Convection Toaster Oven with interior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clbm2biep001r9t88dm6yhvcj.jpg)
![An opened front of the stainless steel Mueller MT-175 4-Slice Toaster Oven with interior measurements on a white background.](https://cdn.shouldit.com/reviews/images/toaster-ovens/clbm31t1100249t88ephe8zgv.jpg)
Usability
User Control
Ease of Use
Cleanability
![Grease on the broiling rack of the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5c03woz000q4k8819e9hdel.jpg)
![Grease on the broiling rack of the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5c03woz000q4k8819e9hdel.jpg?w=256&q=80)
![Grease on the baking pan of the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5c04gcc000r4k88c0na3oqs.jpg?w=256&q=80)
![The cleaned broiling rack and baking pan of the stainless steel BLACK+DECKER CTO6335S Convection Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cl5c04tdu000s4k88eqvs1830.jpg?w=256&q=80)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wkawv000quj88amlzbjcc.jpg)
![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.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wkawv000quj88amlzbjcc.jpg?w=256&q=80)
![Permanent stains on the right cooking chamber’s ceiling and the upper heating element’s guard of the Mueller MT-175 Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wki7j000ruj88hens78xa.jpg?w=256&q=80)
![The cleaned grooved silver baking pan of the stainless steel Mueller MT-175 4-Slice Countertop Toaster Oven.](https://cdn.shouldit.com/reviews/images/toaster-ovens/cla7wkplv000suj88c2050y67.jpg?w=256&q=80)