Our take
GE Profile PEM31DFWW is a white 1.1-cu.-ft. countertop microwave rated at 800 W output. Its standout documented options are humidity-sensor programs for several common foods and optional trim kits matched to the white suffix. GE separately lists 1,200 W electrical input, so that higher figure should not be treated as cooking output. The glass turntable measures 10.625 inches and can be switched off; the exact product page also gives exterior and cavity dimensions. There is an identity caveat in the frozen source row: its title names PEM31DFWW, while its structured model field names JEM25DMWW, a different GE Spacemaker II model with a 1.0-cu.-ft. cavity. GE's own records verify both codes as separate microwaves, but no evidence identifies which one historical ASIN B0011YEHXA represented. This packet describes PEM31DFWW because it is the exact model named in the title, uses only the exact-model Amazon search, and does not attach that ASIN to this model or borrow JEM25DMWW specifications. GE's manual says the oven is not intended for laboratory or industrial use, but does not explicitly classify it as household-only or foodservice equipment, so duty remains unknown. This review uses GE's product information and owner manual and makes no claims about personal testing, current prices, current stock, or buyer-review trends.
A white GE Profile countertop model for shoppers who value humidity-sensor presets, a glass turntable with an off option, or a documented path to 27- or 30-in. built-in trim; check the opening and kit instructions before installation..
Look at another microwave if you require output above 800 W, foodservice-duty classification, or a guaranteed Amazon listing that matches the historical source ASIN.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- GE lists 1.1 cu. ft., 800 W output, separate 1,200 W input, and a measured 10.625-in. glass turntable.
- The exact product documentation names humidity-sensor popcorn, reheat, beverage, vegetable, and potato programs plus weight/time defrost.
- Optional 27-in. and 30-in. trim kits are specified for PEM31DFWW, and a separate hanging kit is listed for under-cabinet mounting.
What to weigh up
- At 800 W, its stated microwave output is modest compared with many larger-cavity models.
- Trim and hanging hardware are optional accessories, and built-in openings must follow the matching kit's instructions.
- The historical ASIN's title/model-field conflict remains unresolved; the tagged link searches PEM31DFWW by exact model rather than implying ASIN proof.
The key details
| Model covered | PEM31DFWW |
|---|---|
| Capacity | 1.1 cu. ft. capacity, 800 W microwave output by the IEC-705 procedure, separate 1,200 W/10.5 A electrical input at 120 V |
| Microwave output | White PEM31DFWW finish; 24-in. width, 11.75-in. height, 12.875-in. depth, and a 17.38 × 9 × 12.25-in. cavity |
| Cooking approach | GE lists humidity-sensor programs for popcorn, reheat, beverage, vegetables, and potatoes; weight/time defrost is also provided |
| Installation options | 10 power levels, digital touch control, express cook, Add 30 Seconds, clock/timer, control lockout, and turntable on/off |
| Finish and turntable | 10.625-in. glass turntable; optional exact-suffix 27-in. JX827DFWW and 30-in. JX830DFWW built-in kits, sold separately |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
Use the title's model without merging two GE codes
The frozen title names GE Profile PEM31DFWW, while a separate source model field says JEM25DMWW. GE's exact product page and owner-support page identify PEM31DFWW as a 1.1-cu.-ft. countertop model. GE separately identifies JEM25DMWW as a 1.0-cu.-ft. Spacemaker II microwave. The codes are not aliases: their product lines, model numbers, and stated capacities differ. This entry covers PEM31DFWW because the title calls out that exact real model, but the historical ASIN B0011YEHXA was not matched to either code. The affiliate destination searches for PEM31DFWW and carries the required tag; it is not a direct link to that historical ASIN. A buyer should check the model plate and actual listing suffix before ordering, especially if white finish or trim compatibility matters.
Compare the 800-W output with the separate input rating
GE's specification identifies 1.1 cubic feet of capacity and 800 W microwave output under the IEC-705 procedure. It separately lists 1,200 W electrical input and 10.5 A at 120 V. Use 800 W when comparing cooking-output requirements; the input rating reflects what the appliance draws electrically. The product page gives an outside size of 24 inches wide, 11.75 inches high, and 12.875 inches deep, with a 17.38 × 9 × 12.25-inch cavity and about 29 pounds net weight. These numbers help plan a counter footprint and compare cookware dimensions, but nominal volume alone cannot confirm that an especially wide dish will clear the door and rotating tray.
Sensor programs adjust cooking from humidity
GE identifies sensor controls for popcorn, reheat, beverage, vegetables, and potatoes. The PEM31 manual explains that its sensor features detect humidity released during cooking and adjust time for different food types and amounts. It advises using a vented cover, keeping dishes and cavity dry, and allowing the oven to cool between consecutive sensor sessions. Those are real operating differences from a product that only offers fixed timed presets. The model also has one-to-ten manual power settings, six express-cook minute buttons, Add 30 Seconds, clock/timer, and control lockout. Weight/time defrost is listed separately, so the review does not treat that feature as proof of humidity sensing. SensorCooking is supported by the exact GE specification and operating instructions.
Plan a built-in path with the correct optional kit
GE lists a 27-inch JX827DFWW and 30-inch JX830DFWW built-in kit for the white PEM31DFWW. The manual's model/kit table pairs this exact suffix with both kit families, and GE sells each as an optional accessory. A separate JXA019K hanging kit is listed for under-cabinet mounting; it is not the same as a trim kit. On the counter, GE recommends three inches at each side, three inches at the top, and one inch at the rear, and it calls for the door front to sit at least three inches behind the counter edge to reduce tipping risk. Check the opening and installation template for the actual kit before treating a countertop-ready oven as an installed built-in.
A defined glass-tray size with an unknown duty class
The exact product specifications state a 10.625-inch glass turntable and a turntable-off control. The plate can be removed for cleaning, but compare the widest part of a dish with the rotating surface and available cavity clearance; the diameter does not guarantee a particular serving platter will fit. GE's owner manual says the appliance is not intended for laboratory or industrial use. The sources reviewed do not say HOUSEHOLD USE ONLY or identify PEM31DFWW as commercial foodservice equipment. Since the matching profile asks for an explicit manufacturer classification, commercialDuty remains null rather than turning a non-industrial warning into a stronger duty claim. The model's sensor and built-in options are documented, but they do not make it a commercial-duty oven.
What else to compare
Sharp R-309YV is another 1.1-cu.-ft. model with 1,000 W output and an 11.25-in. turntable, but its saved packet does not document sensor cooking or a trim kit. LG LCRT1510SV offers a larger 1.5-cu.-ft. cavity and 1,200 W output with GE-like sensor cooking. PEM31DFWW is the lower-output, white option with a specifically documented 10.625-in. turntable and optional white 27-/30-in. trim kits; compare the physical opening and the feature need before choosing.
Before you buy
What are the stated capacity and microwave output?
GE lists 1.1 cu. ft. and 800 W cooking output, separate from 1,200 W electrical input.
Which sensor functions are named?
Popcorn, reheat, beverage, vegetable, and potato; the manual says the sensor uses cooking humidity to adjust time.
Which built-in trim kits fit the exact white suffix?
GE lists the 27-in. JX827DFWW and 30-in. JX830DFWW kits for PEM31DFWW. Both are optional accessories.
How large is the glass turntable?
GE specifies 10.625 inches and provides a control to turn the turntable off.
Does ASIN B0011YEHXA prove the title model?
No. The source row conflicts between PEM31DFWW and JEM25DMWW, and the historical ASIN could not be mapped. This link searches for PEM31DFWW by exact code.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- GE Appliances product page and PEM31 owner manual for the exact white PEM31DFWW variant ↗ — checked October 4, 2026.
- GE exact-model product and specification page: PEM31DFWW identity, white color, capacity, output/input, sensors, kits, turntable, controls, and dimensions ↗ — checked October 4, 2026.
- GE owner-support page identifying PEM31DFWW and linking its owner manual ↗ — checked October 4, 2026.
- GE PEM31 owner manual: humidity-sensor operation, countertop clearances, model-specific trim-kit table, and control guidance ↗ — checked October 4, 2026.
- GE JEM25DMWW support page used only to confirm that the conflicting field names a different 1.0-cu.-ft. Spacemaker II model ↗ — checked October 4, 2026.
- Historical ASIN lookup failed; no exact current listing identity for PEM31DFWW or JEM25DMWW was established ↗Paid link · We may earn a commission. — checked October 4, 2026.
The decision
Choose PEM31DFWW if the 1.1-cu.-ft. cavity, 800-W output, humidity-sensor modes, 10.625-in. turntable, and white 27- or 30-in. built-in-kit options fit your plans. GE lists 1,200 W electrical input separately. The frozen source row's model field conflicts with its title, so verify that a specific appliance is PEM31DFWW and use the exact-model search; historical ASIN B0011YEHXA is not confirmed. Commercial duty remains unclassified.
Is it the right fit?
Check the exact model and today’s offers on Amazon.