Panasonic NN-SB458S Compact Microwave, 0.9 cft, Stainless
$124.95
Product Overview
The Panasonic NN-SB458S is a compact countertop microwave oven engineered for reliable, everyday performance in homes where space is limited. With 0.9 cubic feet of interior capacity and 900 watts of high power, it efficiently handles reheating, cooking, and warming tasks with consistent results. Its sleek stainless steel exterior not only enhances modern kitchen aesthetics but also resists fingerprints and smudges, maintaining a polished look over time. Designed for simplicity without sacrificing functionality, this microwave delivers intuitive operation through clearly labeled buttons and preset programs, making it accessible to cooks of all experience levels.
Key Features
- 900-Watt High Power Output: Delivers rapid heating and even cooking, significantly reducing wait times while preserving the texture and flavor of your food.
- Microwave Popcorn Button: Features three selectable power settings—low, medium, and high—to customize popping based on your preference, ensuring consistently perfect results every time.
- 10 Power Levels: Offers precise control across a wide range of cooking intensities, allowing you to fine-tune settings for delicate foods or high-heat tasks like browning.
- 7 Preset Auto Cook Menu Items: Includes pre-programmed settings for common meals such as beverages, vegetables, potatoes, and more, enabling one-touch preparation with optimal timing and power.
- Keep Warm Mode: Maintains food at an ideal serving temperature after cooking completes, so multi-course meals stay hot and ready until everyone sits down.
- Delay Start Function: Allows you to set the microwave to begin cooking at a later time—ideal for meal planning around your schedule or preparing food before arriving home.
- Quick 30-Second Timer: Provides instant access for short tasks like defrosting small portions, warming leftovers, or melting butter without needing to enter full cooking cycles.
- More/Less Control: Adjusts cooking time in 10-second increments during longer cycles, giving you flexibility to fine-tune duration based on actual results or personal taste.
- 10.6-Inch Turntable: Ensures uniform heat distribution by rotating food throughout the cavity, eliminating cold spots and promoting evenly cooked dishes.
Technical Specifications
- Capacity: 0.9 cubic feet (interior)
- Cooking Power: 900 watts
- Exterior Finish: Stainless steel
- Dimensions (W x H x D): 19.1 inches wide × 11.5 inches high × 14.8 inches deep
- Turntable Diameter: 10.6 inches
- Number of Power Levels: 10
- Preset Auto Cook Menus: 7
- Microwave Popcorn Settings: 3 power options
- Delay Start Capability: Yes
- More/Less Adjustment: Yes (in 10-second steps)
- Quick 30-Second Button: Yes
- Keep Warm Mode: Yes
Benefits & Use Cases
Sized perfectly for apartments, dorm rooms, studio kitchens, or any space-conscious environment, the Panasonic NN-SB458S excels in delivering practical performance where larger models would be impractical. The 0.9 cu. ft. interior comfortably accommodates standard dinner plates, medium-sized bowls, casserole dishes, and family-size servings of pasta or rice—making it suitable for individuals, couples, or small families. Whether you’re reheating last night’s soup, steaming vegetables, or preparing a quick snack, the combination of high wattage and smart presets ensures efficient results with minimal effort.
The seven built-in auto cook menus simplify routine tasks: simply select the food type, press start, and let the microwave handle the rest. This feature reduces guesswork and helps prevent overcooking or underheating—especially helpful when preparing unfamiliar recipes. For example, the vegetable setting automatically adjusts time and power to preserve nutrients and texture, while the beverage button safely heats liquids without boiling over.
The Keep Warm function is particularly valuable for entertaining or meal prep; it keeps dishes at serving temperature for up to two hours, ensuring dinner is ready exactly when guests arrive. Combined with Delay Start, this means you can begin cooking earlier and enjoy hot meals precisely when needed—without constant monitoring.
The Quick 30-Second button offers immediate convenience for small jobs: warming milk for coffee, softening butter, or reviving crispy snacks. And with More/Less Control, you gain confidence during longer cooking sessions—add extra seconds if food needs more time or reduce if it’s nearing completion.
Despite its compact footprint, the 10.6-inch turntable provides ample rotation space for most common dishes. While large roasting pans or oversized baking sheets may not fit entirely within the cavity, everyday mealware is accommodated comfortably. The stainless steel finish complements both contemporary and traditional kitchens, resisting corrosion and simplifying cleanup.
This model does not include additional accessories such as racks, trays, or instruction manuals beyond standard packaging contents confirmed in product documentation. Always verify counter space dimensions—19.1 inches wide by 14.8 inches deep—before installation to ensure proper fit and ventilation clearance.
Important Notes
- The microwave measures 19.1″ wide by 11.5″ high by 14.8″ deep; confirm available counter space before purchasing to ensure proper fit and airflow.
- Interior capacity is optimized for standard mealware but may not fully accommodate very large or deep baking dishes.
- Package includes only the microwave unit; no external racks, trays, or printed manuals are included based on available specifications.
- Stainless steel exterior should be cleaned regularly using a soft, damp cloth and mild detergent to maintain appearance and resist smudges.
- Ventilation gaps must remain unobstructed around the unit to ensure safe and efficient operation.
10 reviews for Panasonic NN-SB458S Compact Microwave, 0.9 cft, Stainless
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Desiree Durr –
Equipment
My microwave works perfectly fine you just have to push the key button to unlock the microwave door.
James JR –
Powerful and quiet!
Very good microwave, powerful, fast and quiet!
V. Moore –
Good smallish unit that has limited features
When did microwaves start becoming the size of small cars? That’s what I wondered when checking out the dimensions on all these units. My apartment kitchen is a postage stamp sized affair with less counter space than a camper. I had an old Panasonic microwave that fit the small space I have for one and lived a good long life of 20 years dutifully heating Lean Cuisines and heating up forgotten cups of coffee. It just up and quit one day. The nerve! This replacement unit doesn’t live up to the old unit in that it does NOT have one touch cooking. The old unit you could just press “start” and it would start cooking for one minute. If you pressed “start” again it would add another minute and so on. This unit you have to enter in the time and then hit start. There’s a “quick 30 seconds” button – but that just puts 30 seconds on the clock and then you still have to hit “start”. There’s a mysterious “more” and “less” set of buttons that do not appear to add more or less time to cooking – but I’m sure they serve some purpose to a higher function that I am not interested in. I know the whole one touch issue makes me appear unbearably lazy – but you get used to a feature and then it’s gone and somehow that a few more button presses seem like punishment for wanting to heat something up. I simply want to put something inside the oven, close the door, start cooking with a touch or two, and then have it turn off with a solid beep. On the good side – it looks lovely and will work with both a black-themed or stainless-themed appliance set; it is small-ish and will fit in a tiny kitchen; it works well; it does not have a nagging beep that keeps reminding you to come back and get your stuff…one beep and then it’s all on you; and – finally, I no longer need a night light in the kitchen because the clock is so bright that I am sure they can see what time it is from space. Recommend!
MBeth –
Works great, easy to use, quiet
I’ve been using this microwave for several months before rating.It cooks as expected, easy to clean, easy to set the time and set amount of time for cooking.Not a problem for me but the buttons are not lit so you will need some light to push the right ones.The only thing that I might change is that the interior is gray so I don’t see the food splashes as easily as my old microwave with the white interior.
china mayhew –
keep the box, you will need it
Keep the box! i purchased this item on may 7th 2020 and received it on may 13th 20. not thinking i set it up and put the packaging into the recycle bin, small apartment, no place for an extra box. it’s been used probably once a day since i set it up. about a week ago it stopped heating anything. my first thought was to return it but i no longer had the original packaging. i decided to try unplugging it then plugging it back in and to my surprise, it started working again. of course, that was short-lived and tonight i put my food in, turned it on, waited for the buzzer and got a plate of ice-cold food for my trouble. i tried the plug thing again, it took four attempts to get it to heat. that worked once and now the microwave is no longer functional. the light goes on, the food takes a ride but nothing gets heated. in short, the microwave is garbage, if you purchase it you will need to send it back in roughly a month or risk being out the money you spent along with what it will cost to replace it. if you’re smart you’ll just pass this microwave up all together it’s not worth the money or the aggravation.follow-up:lesson learned when looking at the reviews always start with the lowest first. those are the ones that tell you what it’s like to deal with all those involved when something goes wrong. it took an hour and 3 service reps, 2 just disappeared during the process, multiple attempts at securing a refund. first, they suggested have you tried plugging it in on another circuit. all my outlets in the kitchen are the same, which i explained. they have circuit breakers on the socket. well, the 1 and 2-star reviews mentioned they don’t work well when plugged into those. i don’t know which aggravated me more that they sell a product that won’t work on plugs routinely installed in kitchens for safety reasons or the thinly veiled implication that i should rearrange my kitchen to accommodate an overpriced poorly designed microwave. next came we’ll hand you over to Panasonic, well those 1 and 2-star reviews tell you how effective that is. yeah, i want to take however long to get a lemon fixed that will probably stop working just like it did before the repair. while I was writing my emphatic “no” reply serv. rep #1 took a permanent powder. Serv. Rep #2 came on after I signaled I was still there and proceeded to ask the questions I just answered because obviously he hadn’t read the conversation. i explained I wanted a refund and suggested he read the thread. he basically told me to hold on then disappeared just like serv. rep #1. enter serv. rep #3. yet again i state what i want and the reason i want it. he informed me that the 1-month return window had closed and i informed him i had the product just over a month, “READ THE THREAD!”, and it stopped working all after the window had closed. not that that really matters, you should get more than a month out of a microwave. after much discussion, the rep said it was resolved and i would get a refund. to make sure it wasn’t credit i said you do realize i will not be getting a replacement through amazon? he said that was fine then they told me they would send out a replacement that would take a week to arrive. hello! I’ve repeatedly asked for a refund, you said you were giving me a refund! why now would i agree to have a piece of crap replaced by another piece of crap? why after repeatedly telling you i needed to be able to get a microwave as soon as possible would they suggest that? why when you should be offering to overnight it are you showing me that you’re opting for the cheapest possible shipping method? Rep #3 told me to hold on. he finally got back to me, though, at this point, i was waiting for the entrance of rep #4. a one-time exception was being made and they were giving me a refund did i want it on an amazon card.?. you have to be kidding me! didn’t i just say i would not be purchasing a replacement on amazon? of course, i want it refunded to my original payment method! now to get my refund i have to find a box and packing material to mail back a piece of crap that belongs in the dump not refurbished for resale and labeled not in its original packaging. do i sound jaded?there really is only one way to handle a situation like this amazon llc. a refund with no further inconvenience to the customer. multi-billion dollar corporations can afford to eat the wholesale cost of faulty products that they shouldn’t be selling because well, they’re faulty. it shouldn’t take an hour, 3 reps, and multiple attempts on your part to mitigate potential losses, before the requested solution is finally agreed to, provided you are willing to be inconvenienced even further. all i can say is there’s only one thing here that sucks worse than that microwave and that’s how you chose to handle what should have been a simple refund.
A reader, a crafter, a gardener and cook –
Yippee, there’s NO express cook!! very happy
I hate express cook and was looking for a microwave that did not have it and finally found this one.This one is straightforward times….you want 45 seconds, you push 4, 5, then start. You need 90 seconds, you push the 9, 0, start. LOVE THAT! (you can’t do that with Express Cook…every button is minutes so as soon as you press 4 it starts cooking for 4 minutes).And there is a 30 second button which is also a time saver.It’s quiet, no issues there.It’s perfect for me. I cook a lot of those bagged rices or Indian foods that need 90 seconds and Express Cook buttons don’t allow that unless you push other buttons to override it. How other manufacturers thought giving us nothing but full minutes would save time when almost everything I cook is 30, 45 or 90 seconds is beyond me.Not a single complaint with this one.
Leelee –
Poor Interior Lighting
Microwave is compact and streamlined, though a little deeper than my old one. It also has 900 watts which is very good for an appliance of this size and price. (I don’t have to constantly adjust the cooking time to accommodate my previous 600 watts). However, the interior light is a joke. It’s situated at the front of the microwave with a bulb so dim that it barely lights up a quarter of the space. A huge design flaw. Thus the three star rating.
Brian P –
Nice
For the money (under 100) this is a great choice. It does everything you need it to and seems well made.
Cliente –
Llevo dos semanas , hasta ahora todo bien.
Neil –
I BOUGHT THIS PRODUCT LESS THAN A YEAR AGO.IT HAS STARTED GIVING ME PROBLEMS, IT SHUTS ON AND OFF ON IT’S WHILE IN USE!IT MAKES A LOUD HISSING SOUND AS IF IT IS GOING TO EXPLODE!!VERY DANGEROUS PRODUCT!!! STAY AWAY!!!