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  • Introduction

  • Design & Usability

  • Features

  • Performance

  • Conclusion

  • Science Introduction

  • Temperature Performance

  • Moisture Retention

  • Freezing & Thawing

  • Storage Space & Energy Efficiency

  • Other Tests

Introduction

Design & Usability

A traditional French door with plenty of style.

With doors that are slightly curved at the top, this LG is a sleek refrigerator indeed. The front is covered in a highly-polished, horizontal-grain stainless steel exterior that’s not very good at keeping away fingerprint marks, but does a great job looking oh-so-good. The inside is bathed in the glow of blue LED lights, but otherwise utilizes a traditional layout populated with smooth-gliding drawers and half-width shelves. The top right shelf even folds at its midpoint for easier storage of tall items. The pull-out freezer—another straightforward compartment as far as design goes—opens to reveal several other drawers nested within, all of which glide open like they're greased with duck fat.

The water and ice dispenser...is actually two separate dispensers in one.

The ice maker has been relegated to the interior of the fridge door, an LG signature design that other manufacturers have begun to emulate. It's a good move, because it frees up a lot of space in the main storage cavity. The water and ice dispenser, on the other hand, is located on the exterior of the left door, and is actually two separate dispensers in one. The water dispenser is flush with the fridge exterior, while the ice dispenser hides beneath it. All controls are built into the side of this dispenser. Temperature readings only glow from beneath a stainless-tinged panel while you’re adjusting them, so aside from ice and water controls, the front of the fridge remains untainted by glowing lights.

Features

Plenty of storage space and (mostly) easy-to-use controls.

We'd prefer temperature controls that can move up and down, rather than having to scroll in only one direction.

The whole appliance is controlled by flat, touch-sensitive buttons on the front of the unit, located to the left of the water and ice dispenser. Though we'd prefer temperature controls that can move up and down, rather than having to scroll in only one direction. Aside from these minor gripes, the controls are labelled well and are fairly easy to use.

The water dispenser is flush with the front of the fridge door, while the ice is dispensed from behind. The unit is aesthetically pleasing, but depending on what size glass you’re using, expect some splashes if you aren't holding your glass directly under the nozzle. Inside, the spill-proof shelves have narrow frames, so they’re lighter and easier to move than those inside many other fridges.

Performance

Ideal as a refrigerator, slightly disappointing as a freezer

Up in the vast fridge compartment, the LG’s compressor managed to keep the entire space cold, despite obstacles to air circulation that included shelves, drawers and packages filled with simulated meat—all standard issue for fridge testing. The middle shelf was slightly warmer than the shelves above and below, which is a common occurrence, but something to consider when deciding where to put food. Temperatures remained extremely consistent over time even as the compressor cycled on and off, which means food will stay fresh for longer.

The excellent vegetable drawer retains a good amount of moisture, which will keep your produce fresher, longer. That means you might save some money on fruits and veggies, money that you'll need to pay your bills after you spend close to three grand on a fridge.

Items inside the bottom drawer were on average eight degrees warmer.

Things weren’t so great in the freezer. Yes, the well-insulated drawer kept food at consistent temperatures over time, which means there's less of a risk of freezer burn. However, poor air circulation in a loaded freezer resulted in unbalanced temperature output. Items at the bottom were substantially warmer than items kept at the top, so you won't want to move items around in there and risk a light thaw.

Conclusion

In this case, a high price tag does mean high performance.

Talk to anyone in the appliance industry from outside of the US, and the conversation will undoubtedly come around to just how large refrigerators are in America. In fact, in France, French door fridges are called "American style." Though it's made in Korea, this 30.7 cubic foot (!) LG is as American as a pickup truck, with enough space to store bulk purchases, gallons of milk and a month's worth of frozen dinners.

We weren't just impressed by the LG LFX31925ST's size, however. The big French door breezed through our tests like Usain Bolt at a charity 5K. Fridge and freezer temperatures were remarkably consistent over time, and compared to fridges of the same size, it used relatively little energy.

Three grand is a lot to spend on a fridge, though, and that's just about what this one costs. For that price, we would’ve hoped for more consistent freezer performance across shelves and even more precise temperature control in the fridge. Still, those are small complaints. If you need a fridge that's only slightly smaller than a walk-in, you couldn't do much better than this LG.

Science Introduction

Most of our tests results were very pleasing. If you take a look at the numbers for yourselves, you'll see why. You'll also see why we were disappointed with the freezer...

Temperature Performance

Good consistency overall, with one caveat in the freezer.

Other than a slight warm spot in the middle of the fridge, temperatures were more or less spot on with the 37 degrees listed on the control panel. To make this good thing even greater, we found that there was an average temperature shift of less than 0.4 degrees over time, making this a reliable and consistent appliance.

Freezer temperature varied less than 1 degree over time, which is good, but the temperature from top to bottom shifted considerably. Items stored in the freezer's bottom drawer averaged internal temperatures of about 8.23 degrees Fahrenheit. When you consider that the items we placed at the top averaged a far more pleasing 0.33 degrees, you can see that there's clearly something wrong with this design's ability to circulate cold air.

Moisture Retention

Moisture loss is kept to a minimum.

The LG’s vegetable drawers were very good at keeping moisture in, with an average loss of just 0.13 grams of moisture per hour over the course of three days. Most fridges clock in around 0.17, or even up to 0.21 grams, making this a well-designed fridge with effective crispers.

Freezing & Thawing

A quick freezing time means texture isn't negatively affected.

Freezing food is like taking off an adhesive bandage—best to do it quickly. The LG had no trouble freezing food quickly, bringing our test packages from room temperature to fully frozen in just 1 hour and 16 minutes.

At the end of our temperature tests, we unplug a fridge to see how well it will retain cold even when the compressor isn’t active. It’s a good measure of how well-insulated a fridge is, and how well it will handle a power outage. After 36 hours, food inside this LG still had not defrosted.

Storage Space & Energy Efficiency

Plenty of storage for everything.

Up in the fridge, there’s a full 11.63 cubic feet of usable space.This takes into account areas blocked by shelving and other obtrusive features. That's quite impressive, and it turns out to not come at the expense of the freezer. That section has an equally impressive 5.21 cubic feet available for storing your groceries, making this model a good fit for any diet.

We tested the LG LFX31925ST’s energy consumption and found that in a year, it will set you back $39.63, assuming that power sells for $0.09 kW-h where you’re located. That’s less than most comparable refrigerators and much less than many French door models. Its impressive size and low energy bill creates a ratio of 0.07 kW-h required per cubic foot of available space, making this an exceptionally effective product.

Other Tests

Meet the tester

Keith Barry

Keith Barry

Former Editor in Chief, Reviewed Home

@itskeithbarry

Keith was the Editor in Chief of Reviewed's appliance and automotive sites. His work has appeared in publications such as Wired, Car & Driver, and CityLab.

See all of Keith Barry's reviews

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