• Insignia NS-RTM18WH7

  • How We Tested

  • What To Look For When Buying A Refrigerator

  • Other Affordable Fridges We Tested

  • Refrigerators That Didn't Make the Cut

  • More Articles You Might Enjoy

Insignia NS-RTM18WH7 background
Credit: Insignia
Best Overall
Insignia NS-RTM18WH7

Only available at Best Buy, the Insignia NS–RTM18WH7 refrigerator has one big thing going for it: a low, low sale price, which means it's cheaper than almost any other full-size fridge you can buy.

The 18-cu.-ft. top-freezer had a tough time with some of our tests. Namely, it ran a little hot, with temperatures well above our preferred value of 37°F. Bumping the temperature down to the lowest setting will ensure that your food is being safely preserved. On the other hand, this fridge was one of the most efficient fridges (in terms of electricity usage) that's ever come through our labs. There's also plenty of storage space, with no hidden extras (like water filters or air filters) to take up valuable real estate that you need for a pizza box or a Thanksgiving turkey. Long story short, we think the Insignia NS-RTM18WH7 is worth a look if you need a second fridge, or if your budget is tight.

Pros

  • Energy efficient

Cons

  • Fridge temperatures can run a little warm

How We Tested

The Testers

Hi there! We're Reviewed's appliance testing team. Between the three of us (Jon Chan, Kyle Hamilton, and Julia MacDougall), we've spent many years testing major appliances including washers, dryers, refrigerators, dishwashers, vacuum cleaners, and robot vacuum cleaners.

We have plenty of experience testing these products in the lab, but we've also used them as normal people would in the course of their daily lives, which means that we have a great sense for what appliances are bargains at their price points, and which appliances have really useful extra features (as opposed to the kitchen-sink approach to features).

With all this in mind, you can feel confident that when we recommend a product, we're giving it our Reviewed stamp of approval, which means two things: firstly, this appliance performs well, and secondly, this appliance is easy to use. We're always reviewing new products, so stay tuned for our reviews and roundups of the latest products in laundry, refrigerators, dishwashers, and vacuum cleaners.
At first glance, most refrigerators don't look like anything special. All they have to do is keep your food and beverages from going bad, right? It turns out that there's a lot more to these big, heavy, cold boxes than meets the eye, and between our specially calibrated refrigerator lab and our rigorous testing standards, the testers and writers at Reviewed can recommend specific fridge models, and back up those recommendations with hard data and personal experience.

At first glance, most refrigerators don't look like anything special. All they have to do is keep your food and beverages from going bad, right? It turns out that there's a lot more to these big, heavy, cold boxes than meets the eye, and between our specially-calibrated refrigerator lab and our rigorous testing standards, the testers and writers at Reviewed can recommend specific fridge models, and back up those recommendations with hard data and personal experience.

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The Refrigerator Test Lab

Fridge_chamber
Credit: Reviewed.com/ Julia MacDougall

Just by living in the real world, you've probably noticed that appliances operate best in certain temperature conditions. Because an appliance involves a number of electronic and mechanical parts working together in harmony, the air in your home can inhibit certain parts from working at their best, especially in extremely hot or cold climates.

Refrigerators, in particular, can be very sensitive to ambient air conditions. To make a long story short, refrigerators pull in air and cool it down to temperatures cold enough (usually around 37°F) to preserve food and inhibit bacteria growth. In hot weather, the condenser and cooling coils have to work harder to cool the warmer air. In cold weather, the fridge struggles to operate in general. This is why, if you happen to have a second fridge in your burning hot or freezing cold garage, you may have noticed that the air inside that fridge is not as cold as the air inside your kitchen fridge.

To mitigate these possible temperature effects, we test each refrigerator in a special lab that conditions the air to a temperature of 72°F +/- 5°F, and a relative humidity of 50% RH +/- 15% RH (basically, room temperature). This way, each fridge can get the chance to perform at its best, and doesn't get inadvertently penalized for having to deal with warmer or colder air than its competitors experienced.

The Tests

Fridge Temperature
Credit: Reviewed

Over the course of a week (including a day for calibration), we put each refrigerator through its paces. After filling the fridge up with water ballast (since fridges operate better when there's less empty space), we measure the fridge's temperature, humidity loss, freezing time, usable space, and energy use.

Temperature — Our ideal temperature settings for the fridge and the freezer are 37°F and 0°F, respectively. With fridge temperatures higher than 37°F, you might have to start worrying about bacteria growth, as 40°F is the start of the bacteria "danger zone". Freezer temperatures warmer than 0°F mean that the food isn't being truly frozen. Once we set each fridge to those temperatures, we collect temperature data throughout the week's testing that tells us not only how close the temperature in the fridge and freezer are to 37°F and 0°F, respectively, but how close the air temperature stayed to those ideal values.

Humidity Loss — For this test, we focus on the refrigerator's veggie crisper. We add water to a floral foam ball, and then record how much of the water is evaporated away each day. Humidity loss rates are important because if the crisper is too dry, your leafy greens will dry out very quickly. If the crisper is too humid, then your fruits will rot. Fridges that can strike a balance between these two extremes will help you to preserve your fruits and veggies for as long as possible.

Freezing Time — Once the fridge is plugged in, we measure the time it takes for the freezer to cool down from room temperature to 32°F (the freezing temperature of water). This is a good measure of how quickly your fridge and freezer can cool down food or beverages that have just been placed inside the refrigerator.

Usable Space — One of the most common refrigerator specs is the storage capacity, or the volume of the inside of the fridge, in cubic feet. You'd think that a higher capacity means that you can fit more in that fridge, but that's not always the case. We measure the usable space, which is how much empty space is actually available in the fridge's interior. Any number of things can reduce the usable space in a fridge—the ice bucket and/or ice maker, a water filter, air filters, shelf arrangement, etc. The closer the usable space value is to the fridge's stated storage capacity, the more food you can fit in your refrigerator.

Energy Use — Using an electric meter, we measure the fridge's energy usage (in Watt hours) over the week of testing. The less energy used, the more efficient that fridge is, and the more money it'll safe you on utility bills in the future.

We also use each fridge in a more casual sense so that we can answer usability questions about the fridge's specs and features, like the doors, shelves, controls, water/ice dispenser, and extras like smart connectivity, door-in-door or flexible storage options, etc. If a refrigerator keeps the temperature at a perfect 37°F, but it's very difficult to open the doors and the control panel makes no sense, we're going to penalize that fridge with respect to its ease of use.

We test each fridge from two perspectives—first, from a data-driven objective point of view, and second, as a regular person trying to get at the leftover Chinese food. The combination of these two types of experiences allows us to recommend the best fridge for you at any price point.


What To Look For When Buying A Refrigerator

If your refrigerator just died, chances are that you're in a hurry to replace it. When looking for a new or replacement refrigerator, consider the following topics carefully before buy.

Food Preservation

No one wants to spend hundreds or thousands of dollars on a refrigerator that can't keep your food cold. Preserving your food is the most important facet of our refrigerator testing methodology; we gather temperature data in the fridge and freezer, and humidity data from the veggie bin to make sure every fridge can hit and maintain temperatures and humidity values best suited for keeping your food fresh. If you're out shopping for a refrigerator at a store, be sure to ask the sales associate about the refrigerator's cooling abilities. Additionally, you can look through our refrigerator reviews and our refrigerator roundups to see which refrigerators did the best when it comes to maintaining the right environment for your cold foods and beverages.

Your Refrigerator Cutout

If you're replacing a fridge with a very specific cutout (usually surrounded by countertops and/or cabinetry), measure your cutout carefully—it's not unheard of for consumers to buy a beautiful new fridge, only to have to return it because it's too large for the cutout. Measure the height, width, and depth of the cutout multiple times, then be sure to leave at least one to two inches between the top of the fridge and above-fridge cabinetry, as well as a couple inches between the back of the fridge and the wall. Leaving those extra inches behind the refrigerator is especially helpful for the fridge's air circulation.

Lastly, when looking at the depth of your cutout, be sure to account for the depths of the fridge doors. If the distance your fridge sticks out from your cabinetry is not as wide as the thickness of the refrigerator doors, then you might not be able to open the fridge doors all the way.

Your Preferred Refrigerator Style

There are four major styles of refrigerator: top-freezers, bottom freezers, French doors, and side-by-sides. Top and bottom freezer refrigerators have freezers located on the top or bottom of the unit, respectively; the fridge door pulls open to the side, and the freezer door may pull to the side or the front. French door fridges have the refrigerator on top, and have two doors that open from the center to reveal that fridge space; the freezer door below typically pulls out. Side-by-side fridges have the freezer on the left, the refrigerator on the right, and each side has its own door.

Counter-Depth vs. Not Counter-Depth

The term "counter-depth" refers to the depth of your fridge—specifically, how much it sticks out past your cabinetry. The standard depth for a regular, non-counter-depth fridge is typically about 30 inches. If your fridge is surrounded by cabinets, it probably sticks out anywhere from four to six inches. This doesn't bother most people, but if you have space restrictions or stylistic preferences that tend towards a refrigerator with a shallower profile, you might want to take a look at counter-depth fridges.

While there's no standard depth measurement for counter-depth fridges (it largely depends on the manufacturer), they can be as much as six inches shallower than their non-counter-depth counterparts. However, you lose interior storage space as a result of the shallower fridge profile. Before you buy a counter-depth fridge, be sure that the width of your fridge cutout is actually wide enough to support full opening of the doors; when refrigerators have a shallower depth, there's an increased likelihood that the back of the refrigerator door(s) will hit the cabinetry before it can fully open.

One more thing to consider: A counter-depth fridge may cost more than its non-counter-depth counterpart because the manufacturer may have to do some creative rearrangement of the interior compartments and storage units.

Through-Door Water and Ice Dispensers

When looking for through-door ice and water dispensers, be sure to check out the number of ice types available in that fridge—if you're an ice connoisseur, then you may want more than just cubed ice. Other ice options include crushed ice and cylindrical ice. Additionally, some of the more expensive refrigerators have additional dispensing options, such as hot water dispensers or a built-in Keurig pod coffee maker.

In lieu of through-door water dispensing, some fridges offer built-in water pitchers that fill automatically or interior water dispensers, in addition to interior ice makers.

Storage Options

The most basic storage options include built-in shelves in the fridge, one or two crisper bins, and some shelving options on the fridge's doors. When it comes to extra storage, though, the possibilities are endless. In addition to moving shelves to different heights in the refrigerator, some shelves can flip up or retract; some door bins can slide and expand.

Some fridges have door-in-door storage, which allows you to access popular fridge items without opening the whole refrigerator door. French door fridges often have the most extra storage options, including an extra drawer, temperature-controlled deli/pantry drawers that can be set for specific fridge temperatures, pocket storage at the bottom of the refrigerator that make for easy access for kids, or a fourth compartment/drawer that can be set to fridge or freezer temperatures.

Efficiency

If the prospect of using less water and energy is appealing to you, consider the Energy Star rating for a refrigerator for an idea of what your utility bills might look like. Typically, the more complicated your fridge (in features and design), the more energy it uses. In our experience, it's not a lot more than your more basic fridges, but it can add up over time. Only you can decide if the added convenience is worth the increase in running costs.

Fit and Finish

While black and white refrigerators finishes are still available, most refrigerators these days come in some variation of stainless steel options. You should be able to find a refrigerator that matches your kitchen setup and your other appliances, but be ready to pay more money for any finish more sophisticated than black, white, or basic stainless steel.


Other Affordable Fridges We Tested

Samsung RT18M6215SG

The Samsung RT18M6215SG is truly a unique top-freezer refrigerator. This 18-cubic foot fridge has a sleek black stainless-steel exterior and temperatures that are spot-on for food preservation. Surprisingly, the most boring part of a typical refrigerator—the freezer— is where this fridge is truly innovative.

The freezer can either be a normal freezer, or, with a few button presses, you can convert it into a second refrigerator zone. This could be a great choice for a small kitchen, a vacation home, or a garage or basement refrigerator. We think that with its versatility and good looks, the Samsung RT18M6215SG a better-than-average value.

Pros

  • Can maintain consistent temperatures

  • Flexible temperature zone

  • Black stainless steel finish

Cons

  • Have to stoop to access crispers

  • Not much in the way of storage

Frigidaire FFHT1425VV

If you’ve ever needed any proof of the adage “good things come in small packages”, look no further than the Frigidaire FFHT1425VV top freezer refrigerator. While this refrigerator has a profile that’s nearly ten inches shorter and ten inches skinnier than most fridges available on the market today, its food storage capacity is on par with that of your average french door refrigerator. If the space you have available for a fridge is very limited, the FFHT1425VV is a great fit (literally).

This energy-efficient fridge has solid temperature control in both the fridge and the freezer, although the freezer can run a bit warm at times. Fortunately, that issue can be easily overcome by bumping the freezer to a colder temperature setting. We really liked the sliding deli drawer, which allows you to both use the drawer and store tall items on the shelf below without having to adjust any shelves. For those who are short on kitchen space and have high expectations, the Frigidaire FFHT1425VV won’t let you down.

Pros

  • Great size for smaller spaces

  • Good temperature consistency

Cons

  • No ice maker

GE GTS22KGNRBB

If you want a solid, no-frills fridge, the GE GTS22KGNRBB is a great choice.

While some fridges try to cram in every available extra feature and sometimes need to make trade-offs for performance, the GE GTS22KGNRBB instead focuses on the basics—and does a great job. It doesn’t have some of the usability features we like to see, like flexible shelving or storage options, but it is capable of maintaining steady, cool temperatures.

While the GTS22KGNRBB is a bit more expensive than other bare-bones fridges we've reviewed, those options typically have problems with inconsistent temperatures. If you're looking for a garage fridge or need to maximize your budget, the GTS22KGNRBB is a pretty good value for what it offers.

Pros

  • Maintains stable temperatures

  • Large freezer

Cons

  • Freezer runs a little warm on the default setting

Whirlpool WRT318FZDB

Affordable fridges are a dime a dozen, but the Whirlpool WRT318FZDB stands out. Despite this 18 cu. ft. fridge's low price point, it has a few cleverly-designed and eye-catching storage options. Between a movable deli bin (that slides from one side of the fridge to the other), a retractable shelf on the door that can make it easier to store wine bottles, and movable glass shelves, you won't have any trouble fitting large or awkwardly-shaped foodstuffs in this fridge.

Best of all, this fridge was dead-on when it came to our temperature tests; it effortlessly maintained 37°F and 0°F in the fridge and freezer, respectively, throughout our week of testing. For all of these reasons and more, we think the Whirlpool WRT318FZDB is one of the best affordable fridges you can buy.

Pros

  • Can maintain consistent temperatures

  • Flexible storage options

Cons

  • Crisper has trouble maintaining humidity

Whirlpool WRT518SZFM

The inexpensive Whirlpool WRT518SZFM top-freezer fridge is a pro at maintaining steady, cool temperatures—a huge bonus, since this is a trait that many similarly-priced refrigerators just don't have. Additionally, the WRT518SZFM features more customizable storage options than its competition.

While we liked the cooling performance and storage options for a fridge at this price point, it’s still pretty basic: If you want dispensers or smart features, this isn’t the right fridge for you. If a basic fridge is exactly what you’re looking for, however, the WRT518SZFM is an excellent choice.

Pros

  • Steady temperatures

  • Good storage options

  • Inexpensive

Cons

  • Light on features

  • Recommended temperatures run warm

Refrigerators That Didn't Make the Cut

  • GE GTS16DTHWW - On its default setting, this fridge ran a lot warmer than our preferred safe temperature setting of 37°F. If you decide to get this model as a second fridge, be sure to lower the temperature settings in both the fridge and the freezer.

  • Frigidaire FFTR2021TS - This top freezer looks great and the refrigerator section performs very well. However, the freezer, on its default setting, runs between 4°F and 8°F warmer than the preferred temperature of 0°F, which isn’t ideal for freezing foods long-term.

Meet the testers

Kyle Hamilton

Kyle Hamilton

Product Tester

Kyle Hamilton is a product tester at Reviewed, specializing in home appliances and technology.

See all of Kyle Hamilton's reviews
Jonathan Chan

Jonathan Chan

Lab Manager

@ReviewedHome

Jonathan Chan currently serves as the Lab Manager at Reviewed. If you clean with it, it's likely that Jon oversees its testing. Since joining the Reviewed in 2012, Jon has helped launch the company's efforts in reviewing laptops, vacuums, and outdoor gear. He thinks he's a pretty big deal. In the pursuit of data, he's plunged his hands into freezing cold water, consented to be literally dragged through the mud, and watched paint dry. Jon demands you have a nice day.

See all of Jonathan Chan's reviews
Julia MacDougall

Julia MacDougall

Senior Scientist

@reviewed

Julia is the Senior Scientist at Reviewed, which means that she oversees (and continually updates) the testing of products in Reviewed's core categories such as televisions, washing machines, refrigerators, and more. She also determines the testing methods and standards for Reviewed's "The Best Right Now" articles.

See all of Julia MacDougall's reviews

Checking our work.

We use standardized and scientific testing methods to scrutinize every product and provide you with objectively accurate results. If you’ve found different results in your own research, email us and we’ll compare notes. If it looks substantial, we’ll gladly re-test a product to try and reproduce these results. After all, peer reviews are a critical part of any scientific process.

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