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Toshiba EM131A5C Review

Despite its substantial size, this microwave justifies its footprint with strong performance and an affordable price
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Toshiba EM131A5C Review (All in all, we highly recommend this Toshiba model.)
All in all, we highly recommend this Toshiba model.
Credit: Laura Casner
Price:  $150 List
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Manufacturer:   Toshiba
By Genaveve Bradshaw and Ryan White  ⋅  Nov 14, 2023
71
OVERALL
SCORE


RANKED
#3 of 13
  • Heating - 40% 4.9
  • Frozen Foods - 30% 8.0
  • Defrosting - 20% 9.5
  • Ease of Use - 10% 8.1

Our Verdict

Delivering impressive results across the board (with some small caveats), the Toshiba EM131A5C is one of our favorite microwaves we've reviewed. This larger model has plenty of user-friendly features and convenient preset buttons. Plus, the 12.4-inch tray is capable of reheating large dishes with relative ease. It did particularly well at defrosting frozen items completely without cooking them, which is a weakness among many microwaves we've tested. This is one of our favorite kitchen appliances, and we highly recommend it to anyone searching for the cream of the crop. See how it measures up versus competitors in our article on the best microwaves.
REASONS TO BUY
Excellent at defrosting
Easy to use
Affordable
REASONS TO AVOID
Inefficient sensor reheat function
Bulky storage size

Compare to Similar Products

 
toshiba em131a5c
This Product
Toshiba EM131A5C
Awards  Editors' Choice Award
Best Overall Microwave
Top Pick Award
Best Microwave for Heating Frozen Food
Best Buy Award
Best Value Microwave
Best Buy Award
Best Microwave on a Tight Budget
Price $150 List
$129.99 at Amazon
$219 List
$219.10 at Amazon
$120 List
$115.53 at Amazon
$125 List
$124.95 at Amazon
$82 List
$81.99 at Amazon
Overall Score Sort Icon
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55
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Bottom Line This appliance is a fantastic choice for anyone predominantly heating up frozen foods and seeking a larger modelA crowd-pleaser with robust performance in every aspect - you can't go wrong with this excellent applianceA full-size microwave that is a solid performer across the board with outstanding frozen food heating capabilityA middle of the road product for a reasonable price, scoring similarly to many others that were priced much higherIdeal for those on a budget or with limited space, but this model falls short in terms of premium build quality and high-level performance across our evaluated metrics
Rating Categories Toshiba EM131A5C GE JES1109RRSS Magic Chef MC110MB Panasonic NN-SB458S Comfee EM720CPL-PMB
Heating (40%)
4.9
7.3
6.4
6.2
5.5
Frozen Foods (30%)
8.0
8.3
8.7
6.7
4.3
Defrosting (20%)
9.5
10.0
8.0
7.0
7.0
Ease of Use (10%)
8.1
8.1
7.9
5.5
6.3
Specs Toshiba EM131A5C GE JES1109RRSS Magic Chef MC110MB Panasonic NN-SB458S Comfee EM720CPL-PMB
Measured 45 Sec Heating Temp Rise 79 F 71 F 106 F 89 F 67 F
Measured Weight of Defrosted Meat 15 oz 15 oz 12.5 oz 8.8 oz 11.8 oz
Average Temperature Difference 36 F 9 F 7 F 29 F 13 F
Measured Unpopped Kernels 39 37 23 8 192
Wattage 1100 watts 1050 watts 1000 watts 900 watts 700 watts
Measured Turntable Diameter 12.4" 12.4" 12.4" 10.6" 10"
Measured External Dimensions (WxHxD) 20.5" x 12.8" x 17.1" 20.6" x 11.9" x 16.6" 20.6" x 11.8" x 14.7" 19.1" x 11.5" x 14.8" 17.1" x 10.1" x 12.4"
Measured Internal Dimentions (WxHxD) 15" x 9.5" x 13.1" 13.0" x 8.4" x 12.4" 13.1" x 8.2" x 12.5" 13.9" x 8.1" x 12.4" 10.8" x 6.8" x 10.1"
Size 1.2 cu. ft 1.0 cu. ft 1.1 cu. ft 0.9 cu. ft 0.7 cu. ft
Child lock Yes Yes Yes Yes Yes

Our Analysis and Test Results

The Toshiba EM131A5C is one of the larger and more affordable options in our best microwave review. Moreover, it's one of the more affordable top-performing options in the lineup.

Performance Comparison


The Toshiba EM131A5C is easy and straightforward to use thanks to its quick-select functions.
Credit: Abriah Wofford

Heating


The EM131A5C kicked off our heating tests with an underwhelming performance but quickly rose to the challenge. This metric involves five sub-tests. We first evaluated the speed and uniformity of heating by measuring the rise in water temperature. We then created a heat map using marshmallow fluff. Additionally, we assessed how evenly the microwave heated a combination of leftovers, canned soup, pizza slices, and frozen foods.


Heat Map Test


Our heat map test comprises 35% of the total heating score. We cut a sheet of parchment paper into a disc the size of each microwave's turntable tray, covering it in a thin layer of marshmallow creme. After heating the marshmallow on high for two minutes, we measured hot and cold spots and noted any burnt areas.


The Toshiba's result was slightly below average due to its uneven heating. The middle of the fluff was somewhat charred, with a couple of hot spots throughout. Meanwhile, the perimeter of the marshmallow creme was left appearing untouched.

The Toshiba 290002 marshmallow cream prior to microwaving.
The Toshiba 290002 marshmallow cream prior to microwaving.
A very prevalent hot spot appeared in the middle of the heat map...
A very prevalent hot spot appeared in the middle of the heat map when using the Toshiba EM131A5C.

Heating Speed Test


To assess heating speed, we placed a 125 mL beaker of refrigerated water (43 degrees) in the center of each microwave and heated it on high for 45 seconds. We measured the final temperature of the water to determine how fast the microwave could effectively heat its contents. This test contributed to 20% of each appliance's heating score.


The Toshiba EM131A5C did a decent job quickly heating the 125 mL beaker of water. After just 45 seconds of microwaving, the water temperature increased by 79 degrees Fahrenheit, resulting in a total temperature of 122 degrees. Though it's not as quick as other top-of-the-line models, it's still a solid performer.

toshiba em131a5c - the layout of the toshiba is easy to read, with clearly labeled...
The layout of the Toshiba is easy to read, with clearly labeled buttons.
Credit: Abriah Wofford

Leftovers Heating


Regrettably, this particular microwave showed subpar performance in our assessment of reheating leftovers, a segment that contributes to 15% of its heating score. To test this, we loaded up a plate containing green beans, sausage, and potatoes. Then, we utilized the preprogrammed sensor reheat function to see how well it would rewarm its contents.


We found the EM131A5C inadequately rewarmed the food. There was a noticeable temperature variation among the three food types, especially with the potatoes. Some bits of potato were perfectly cooked, while others were still cool to the touch. Additional heating time and thorough mixing will yield better results, but such adjustments were beyond the scope of our calculated testing.

toshiba em131a5c - the toshiba em131a5c left us with mixed results in our leftover...
The Toshiba EM131A5C left us with mixed results in our leftover heating test.
Credit: Abriah Wofford

Soup Heating


Soup can often be a tricky thing to cook in the microwave. Sometimes it barely gets warmed, and other times it comes out boiling. This is why we devoted 15% of our heating test to how well the unit could cook soup. Following the manufacturer's recommended cooking times, the majority of the microwaves, along with the Toshiba EM131A5C, successfully heated the soup in our tests.


The Toshiba EM131A5C did well here, cooking the soup to 160 degrees. This thoroughly heated the contents and kept them at the ideal temperature for instant consumption. Soup sippers should be pleased.

toshiba em131a5c - we were impressed with the soup heating performance of the toshiba...
We were impressed with the soup heating performance of the Toshiba EM131A5C, delivering the perfect temperature.
Credit: Abriah Wofford

Pizza Heating


In the last 15% of the heating score assessment, we reheated two pizza slices. We evaluated how evenly the pizza was rewarmed and ensured they reached ideal eating temperatures.


The performance in pizza reheating was pretty good. There was a noticeable variation between the two slices, but they were both still edible. We were hoping for more consistency, especially when it comes to reheating a popular food item like pizza. A few small sections of each slice were left relatively cool, but for the most part, the slices were still enjoyable.

toshiba em131a5c - the quick start button makes it effortless to get the microwave...
The quick start button makes it effortless to get the microwave cooking.
Credit: Abriah Wofford

Frozen Foods


In our second round of testing, the Toshiba EM131A5C starts to really impress, exhibiting excellent performance when heating prepackaged frozen foods evenly and effectively. We evaluated its performance by strategically placing thermometers in various sections of a Hot Pocket, a personal-sized frozen lasagna, and a frozen burrito. We then analyzed the temperature variations among them.


This microwave performed nearly perfectly with the frozen burrito, cooking up a nice and even texture with no cold spots. The burrito split ever so slightly and oozed some cheese, but we were more than satisfied with the result. In fact, it outperformed nearly every other microwave we've tested with both the burrito and the hot pocket.

toshiba em131a5c - just about perfect results with the frozen food test.
Just about perfect results with the frozen food test.
Credit: Genaveve Bradshaw

Unfortunately, the lasagna had a different outcome. It failed to heat the frozen lasagna properly to an edible temperature. Only one section reached 165 degrees Fahrenheit, while others fell significantly short. It definitely needed more cooking time overall, as the center only reached 81 degrees.

toshiba em131a5c - frozen lasagna going in for the frozen food test.
Frozen lasagna going in for the frozen food test.
Credit: Abriah Wofford

Defrosting


The Toshiba EM131A5C excelled in our defrosting metric, delivering one of the best overall performances we've seen in any microwave. In this evaluation, we focused on thawing a one-pound block of frozen ground beef using the preprogrammed defrost settings. If you use this function often, you can't go wrong here.


Without actually cooking the meat, this microwave flawlessly thawed the entire block in less than 10 minutes. Halfway through, the unit prompts you to flip the meat, which helps prevent overwarming. The meat was evenly defrosted throughout, and as we poked around in the meat, we didn't find any warm spots. The Toshiba has auto defrost options for weight and options for defrosting poultry, meat, and fish.

toshiba em131a5c - perfectly defrosted. it doesn't get much better than this.
Perfectly defrosted. It doesn't get much better than this.
Credit: Genaveve Bradshaw

Ease of Use


Our last round of tests looked at the ease of operating this kitchen appliance, where it scored quite well. We compared the interface's simplicity, how well the preset functions worked, the internal lighting, and whether it slides around on the countertop during normal use.


Getting the Toshiba started is quick and easy. This microwave features a +30 seconds button that immediately initiates a 30-second cycle when pressed. Additionally, it offers quick start functions for cooking durations ranging from one to six minutes. These quick-access buttons include options for custom cooking, soften/melt, defrost, and popcorn, among others. We observed that the popcorn preset works efficiently, with some kernels only starting to slightly overcook toward the end, but none of them burned. Preset popcorn buttons are notoriously bad, so this was a pleasant surprise. With a sturdy internal light and excellent stability, it doesn't shift during operations, including opening, closing, or button presses. The interface can also be used as a standalone timer.

toshiba em131a5c - there's a lot to love about this model, including its selection of...
There's a lot to love about this model, including its selection of easy to use features.
Credit: Abriah Wofford

Should You Buy the Toshiba EM131A5C?


For those seeking a spacious and powerful microwave that excels at handling frozen foods with precision, this should undoubtedly be on your short list of choices. It exhibited near-perfect performance in our defrosting assessments and consistently delivered uniform heating across a variety of foods. Nonetheless, individuals with more compact kitchen spaces might want to explore alternative options.

What Other Microwaves Should You Consider?


If you're looking for superior performance, be prepared to invest some extra money. The GE JES1109RRSS stands out as one of the best models currently available, offering near-flawless operation. However, if you're budget-conscious, you might want to consider the Comfee EM720CPL-PMB, which is more affordable and delivers good performance across various aspects.

Genaveve Bradshaw and Ryan White