EdgeStar CRF321SS 3.1 Cu. Ft. Dorm Sized Energy Star Compact Fridge/Freezer
- Compact Refrigerator
- 3.1 cu ft
- 3.1 cu ft
- 3.1 cu ft
- Better rated than 83%
- More reviewed than 77%
A quiet, solidly packaged compact fridge with a freezer that actually freezes, best suited to single-person or secondary-space use rather than primary grocery storage.
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How it ranks among the 86 compact refrigerators we track
4.5★ across 415 Amazon ratings, Bayesian-smoothed toward the category average.
415 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 86 compact refrigerators we track - how the scorecard works · full compact refrigerators data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The EdgeStar CRF321SS is a 3.1 cubic foot compact fridge and freezer with separate doors for each compartment and a true stainless steel front over a black cabinet.
Unlike single-door mini fridges with a small ice box, this model gives the freezer its own door and its own thermostat, which several reviewers pointed to as the reason food actually freezes solid rather than staying half-frozen. It replaces EdgeStar's earlier CRF320SS with a different refrigerant for better energy efficiency, the main change between the two models.
- 3.1 cu ft fridge and freezer combo
- Separate doors, separate thermostats
- True stainless steel doors, black cabinet
- Slide-out shelves and molded worktop
Who it's for
Works for a dorm room, bedroom, or basement bar where a true separate freezer matters, not just extra fridge space. Not the right size for anyone needing to store more than snack-level food and a few days of groceries.
What buyers say
From Amazon customer reviews.
Buyers repeatedly praised how cold the freezer actually gets, unlike single-door mini fridges, along with quiet operation and careful factory packaging that arrived undamaged. The main complaint was capacity: several owners found 3.1 cubic feet worked only for snacks and a handful of items, and one reviewer measured the warmest fridge setting well below the temperature EdgeStar lists as the maximum.
Strengths and trade-offs
Drawn from this product's published specifications.
- Freezer compartment freezes food solid, not just cold
- Runs quietly enough that the compressor is barely noticeable
- Reversible doors and door bins in both sections
- Ships heavily boxed and padded for damage-free arrival
- 3.1 cubic feet limits it to light, single-person use
- Coldest fridge setting may run warmer than the spec suggests
- Manual defrost required on the freezer side
Performance notes
The two compartments run independently, with automatic defrost on the fridge side and manual defrost on the freezer side, and reviewers consistently described both the compressor noise and any freezer frost buildup as minor after months of use. One reviewer flagged a gap between the listed maximum fridge temperature of around 60F and what the control knob's warmest setting actually produced, which topped out closer to 41-44F in their unit, worth knowing if you need the fridge for higher-temperature storage rather than typical food cooling.
Specifications
| Brand | EdgeStar |
|---|---|
| Model | CRF321SS |
| Dimensions & fit | |
| Item Weight | 55 pounds |
| Item Dimensions D x W x H | 19.9 × 18.7 × 33.4 inches |
| Door Orientation | Reversible |
| Capacity & performance | |
| Capacity | 3.1 cu ft |
| Refrigerator Net Capacity | 3.1 cu ft |
| Fresh Food Capacity | 3.1 cu ft |
| Defrost System Type | Automatic |
| Adjustable Temperature Control | Yes |
| Cooling Method | Compressor |
| Power & efficiency | |
| Voltage | 115 volts |
| Annual Energy Consumption | 270 Kilowatt Hours |
| Construction & materials | |
| Door Material Type | Stainless Steel |
| Shelf Type | slide out |
| Number Of Shelves | 4 |
| Door Shelf Count | 2 |
| Color | Stainless Steel |
| Finish Types | Stainless Steel |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Included components | |
| Unit Count | 1 |
| Included Components | fridge |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Lock Type | Electronic |
| Number of Doors | 2 |
| Number of Sections | 2 |
| Is Electric | Yes |
| Has Convertible Freezer | No |
| Is Product Cordless | No |
| Specification Met | Energy Star |
| Additional Features | Automatic Defrost, Compact |
| BEE Star Rating | 5 Star |
| Configuration | Compact Freezer-on-Top |
| Refrigerant | R-600A |
| Form Factor | Compact |
| Pattern | Solid |
| Item Type Name | Compact Fridge |
How it compares
This product against the closest alternatives we track in compact refrigerators.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| EdgeStar CRF321SS 3.1 Cu. Ft. Dorm Sized Energy Star Compact Fridge/FreezerThis product | 4.5 / 5 | 415 | 4.1 / 5 |
| Chefman - Iceman Mini Portable Black Personal Fridge Cools Or Heats and Provides Compact…Chefman | 4.2 / 5 | 16,000 | 4.4 / 5 |
| Iceman Mini Portable Board Personal FridgeIceman | 4.1 / 5 | 5,100 | 4.2 / 5 |
| Galanz GLR46TRDER Retro Compact Refrigerator with Freezer Mini Fridge with Dual DoorGalanz | 4.5 / 5 | 513 | 4.3 / 5 |
| Nostalgia RF6RRAQ Retro 6-Can Personal Cooling And Heating Mini Refrigerator With Display…Nostalgia | 4.2 / 5 | 2,200 | 4.2 / 5 |
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Questions about the EdgeStar CRF321SS
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the EdgeStar CRF321SS have a separate freezer door?
Yes, the fridge and freezer sections each have their own door, door bins, and defrost method, which is why the freezer reaches a true zero degree range.
Is the EdgeStar CRF321SS an upgrade from the CRF320SS?
It uses a newer refrigerant than the CRF320SS for better energy efficiency, and is otherwise a similar compact fridge and freezer.
How much defrosting does the CRF321SS need?
The refrigerator section defrosts automatically, while the freezer section needs to be defrosted manually.