The Toshiba EM925A5A is the best small microwave for an office because it packs 900 watts and a mute function into a 0.9 cubic foot body, which means fast lunch reheats without beeping through everyone’s meetings. Office microwaves have a specific job. They need to fit tight break-room counters, heat a rotation of leftovers and frozen meals quickly, and stay as unobtrusive as possible, and the picks below are chosen for exactly that.
The Toshiba EM925A5A is the best small microwave for office use, combining 900 watts, a plate-friendly 0.9 cubic foot interior, and a mute option in a compact body. The BLACK+DECKER EM720CB7 is the value pick if counter space is tighter than the lunch line.
- Best overall: Toshiba EM925A5A
- Best value: BLACK+DECKER EM720CB7
- Best budget: COMFEE Countertop Microwave
- Avoid: 600 watt mini units, they turn a five minute lunch break into fifteen
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Quick Picks
- Best overall: Toshiba EM925A5A, 900 watts and a mute option in a compact footprint.. Check price on Amazon
- Best value: BLACK+DECKER EM720CB7, Reliable basics that fit almost any break-room counter..
- Best budget: COMFEE Countertop Microwave, Cheap, mutable, and easy for a whole office to figure out..
Comparison Table
| Microwave | Capacity | Best for | Footprint | Buy |
|---|---|---|---|---|
| Toshiba EM925A5A | 0.9 cubic feet, 900 watts | Busy break rooms, fast reheats | Compact, fits standard plates | Check Price |
| BLACK+DECKER EM720CB7 | 0.7 cubic feet, 700 watts | Small offices, light use | Very compact | Check Price |
| COMFEE Countertop Microwave | 0.7 cubic feet, 700 watts | Budget setups, quiet needs | Very compact | Check Price |
| Farberware Compact Countertop Microwave | 0.7 cubic feet class | Simple controls, shared spaces | Very compact | Check Price |
How We Chose These Microwaves Picks
We researched compact countertop microwaves suited to shared workplaces, compared wattage, interior capacity, control simplicity, and noise options, and read aggregated owner feedback on reliability under heavy daily cycles. Models that reheat fast, fit standard dinner plates, and keep beeping in check ranked highest.
Key Takeaway: For an office, 900 watts in a 0.9 cubic foot body is the sweet spot. It reheats a queue of lunches quickly, fits standard plates, and still leaves counter room for the coffee maker.
Best Overall: Toshiba EM925A5A

Best for: Shared break rooms where a line of people reheats lunch in a narrow window and nobody wants to hear beeps all day. Why it made the list: It hits the office sweet spot of 900 watts for fast reheats, a 0.9 cubic foot interior that takes a standard dinner plate, simple presets anyone can operate without training, and a sound-off option that keeps the break room civil.
- Key specs: 0.9 cubic foot capacity, 900 watts, one-touch presets, mute option, position-memory turntable, energy-saving eco mode, compact stainless-front design.
- What we like: Reheats are meaningfully faster than 700 watt minis, standard 10 inch plates fit without tilting, controls are obvious to first-time users, and the beeps can be turned off.
- What we do not like: The 0.9 cubic foot cavity still cannot take large casserole dishes, the door feels light compared to full-size units, and heavy all-day office use will wear any compact model faster than home duty.
- Who should buy it: Offices of roughly five to twenty people who need quick, repeated reheats through the lunch hour without dedicating half the counter to a full-size microwave.
- Who should avoid it: Large offices with constant use, which should buy a full-size 1000 watt or higher unit or a second machine, and solo desk setups where a 0.7 cubic foot model saves more space.
- Common complaints: Owners mention the interior light being dim, the door requiring a firmer pull than expected, and popcorn presets running hot, which is true of most compacts.
- Size note: At 0.9 cubic feet it fits a standard dinner plate flat. Check counter depth and leave the ventilation gap the manual specifies, since break-room counters are often shallow.
- Cleaning note: Assign someone to wipe it weekly. A bowl of water microwaved for two minutes steams dried splatter loose, and the glass tray is dishwasher safe.
- Alternative: The BLACK+DECKER EM720CB7 covers lighter offices for less money if lunch traffic is low and counter space is the bigger constraint.
Microwave Buying Guide
Wattage decides the lunch line
At 700 watts a frozen meal takes noticeably longer than its box time, and in an office that delay multiplies across everyone waiting. 900 watts is the compact-class sweet spot, cutting reheat times meaningfully while keeping the footprint small. Only very light-use offices should settle for less.
Capacity versus counter space
A 0.7 cubic foot microwave fits almost anywhere but handles a 10 inch plate barely or not at all depending on the model. The 0.9 cubic foot class fits standard plates comfortably while staying compact. Measure the counter and the plates in the break room before deciding.
Shared-use features that matter
In an office, simple express buttons beat clever sensor menus, because every user is a first-time user. A mute option keeps noise down near desks, and a bright, obvious keypad reduces the mystery-button mashing that wears machines out.
Safety Notes
- Post a reminder to never microwave metal, foil trays, or takeout containers with metal handles.
- Keep the vents clear. Break-room clutter piled against a microwave traps heat and shortens its life.
- Never run the microwave empty, which can damage the magnetron and create a fire risk.
- Unplug and retire any unit with a cracked door, damaged seal, or scorched interior.
What to Avoid
- Ultra-cheap 600 watt units, which bottleneck the entire lunch rush.
- Buying by exterior size alone, since some compacts cannot fit a standard dinner plate.
- Complicated sensor-menu models that confuse shared users and invite misuse.
- Skipping a cleaning routine. An office microwave with no owner becomes a biohazard in weeks.
FAQ
What size microwave is best for an office?
For most shared offices, 0.9 cubic feet at 900 watts is the sweet spot, fitting standard plates and reheating quickly while staying compact. A 0.7 cubic foot 700 watt unit works for small teams or solo use where counter space is the priority.
How many watts do I need to reheat lunch quickly?
Aim for 900 watts or more. At 700 watts, typical frozen meals and dense leftovers take noticeably longer than package directions, which compounds when several people are waiting. Higher wattage also heats more evenly in fewer stirring stops.
Will a compact microwave fit a standard dinner plate?
In the 0.9 cubic foot class, yes, a standard 10 inch plate fits flat. Many 0.7 cubic foot models technically fit one but with almost no clearance. If your office reheats plated leftovers rather than containers, size up to 0.9.
Final Verdict
The Toshiba EM925A5A is the best small microwave for office use thanks to its 900 watt speed, plate-friendly interior, and mute option, with the BLACK+DECKER EM720CB7 serving lighter break rooms for less and the COMFEE Countertop Microwave covering budget setups that still want quiet operation.