Panasonic NN-ST45KWBPQ 32L Microwave Oven Review: The Intelligent Kitchen Workhorse?

For years, my relationship with microwaves was one of pure, functional necessity. They were white boxes that turned cold food into hot food, often with disastrously uneven results. I’d pull out a plate of leftover shepherd’s pie to find the edges scorched to a crisp while the centre remained stubbornly ice-cold. Defrosting a block of mince was a race against time, trying to thaw it before the corners turned a sad, greyish-brown. It felt like a compromise, a necessary evil for a fast-paced life. The dream was always to find a machine that applied intelligence to the brute force of microwave energy—an appliance that understood the difference between gently thawing fish and blasting a mug of soup. The frustration of wasted food and disappointing meals made it clear that simply “heating” wasn’t enough; I needed a countertop appliance that could actually cook with precision.

Sale
Panasonic NN-ST45KWBPQ Microwave Oven, 32 Litres, 1000W, Turntable, Easy Operation LCD, Touch...
  • The smart Genius Sensor ensures excellent cooking and reheating results for every meal. An advanced sensor detects the amount of vapour released from your food and automatically calculates the perfect...
  • The convenient pre-programmed Junior Menu makes it easy to conjure up delicious meals for little ones. With three automatic programmes for vegetable puree, fruit puree and porridge ensuring that even...

What to Consider Before Buying a Solo Microwave

A solo microwave is more than just an item; it’s a key solution for rapid cooking, reheating, and defrosting in any modern kitchen. Unlike combination models that add grilling or convection functions, the solo microwave dedicates itself to doing one job exceptionally well, offering simplicity and speed. Its main benefit lies in its efficiency—turning around meals in minutes, defrosting ingredients safely, and reheating leftovers without drying them out. It’s the unsung hero of weeknight dinners, quick lunches, and early morning porridge. For households that already have a conventional oven and grill, a high-quality solo microwave is the perfect, uncluttered companion.

The ideal customer for this type of product is someone facing the daily challenge of feeding a family, batch-cooking for the week, or simply valuing performance and capacity. If you frequently find yourself reheating large casserole dishes, defrosting family-sized portions of meat, or needing a reliable appliance that can handle high-volume use, a large-capacity, high-wattage model is for you. Conversely, it might not be suitable for those who live in a studio apartment with minimal counter space, or for individuals who only use a microwave for popcorn and coffee. For them, a smaller, less powerful model would suffice, and for those wanting an all-in-one cooker, a combination microwave-oven would be a better investment.

Before investing, consider these crucial points in detail:

  • Dimensions & Space: This is arguably the most overlooked yet critical factor. A large-capacity microwave has a significant physical footprint. You must measure your intended countertop space carefully, but also account for the required ventilation clearance around the back, top, and sides. As we discovered, and other users have confirmed, proper airflow is essential for safety and performance, preventing overheating of the unit and surrounding surfaces.
  • Capacity/Performance: Capacity, measured in litres, dictates the size of the dishes you can fit inside. A 20-25L model is fine for singles or couples, but a 32L capacity, like that of the Panasonic NN-ST45KWBPQ 32L Microwave Oven, is geared towards family use. Performance is primarily about wattage and technology. 1000W is powerful and ensures faster cooking times, while advanced features like Inverter technology provide a constant stream of power for more even results, a huge step up from older pulse-style microwaves.
  • Materials & Durability: The exterior is typically metal and glass, but the interior finish matters for cleaning and longevity. While most modern microwaves are built to last, it’s wise to inspect the build quality upon arrival. We’ve seen user reports noting issues with panel alignment and casing on some units, suggesting that quality control can sometimes be inconsistent across the board. A solid build feels sturdy and ensures the door closes securely every time.
  • Ease of Use & Maintenance: A cluttered control panel can be intimidating. Look for a clear LCD screen and intuitive controls, whether they are touch-based or physical dials. Auto-cook and sensor-reheat programs can simplify daily tasks immensely. For maintenance, a smooth, non-porous interior is much easier to wipe clean than one with awkward crevices, ensuring the appliance remains hygienic over its lifespan.

Considering these factors will guide you toward a microwave that not only fits your space but also meets the demands of your household’s cooking style.

While the Panasonic NN-ST45KWBPQ 32L Microwave Oven is an excellent choice for many, it’s always wise to see how it stacks up against the competition. For a broader look at all the top models, we highly recommend checking out our complete, in-depth guide:

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Russell Hobbs RHM2076B 20 Litre 800 W Black Digital Solo Microwave with 5 Power Levels, Automatic...
  • MIRRORED FINISH - The Russell Hobbs RHM2076B features a sleek black body and contemporary mirror door finish
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Samsung MS23K3513AK Solo Microwave, 23 Litre, Black
  • Ceramic Enamel Interior - It's exceptionally smooth antibacterial surface makes it easy to clean. It is also highly rust and scratch resistant so it won't discolour over time.
Bestseller No. 3
Cookology 20L Freestanding Microwave - 700W Power - 24.5cm Turntable - 5 Power Modes &...
  • COMPACT EVERYDAY COOKING: A practical 20L capacity with a 24.5cm glass turntable fits standard dinner plates and bowls, delivering reliable, even heating for quick meals, snacks and reheats in busy...

First Impressions: Unboxing a Minimalist Powerhouse

Pulling the Panasonic NN-ST45KWBPQ 32L Microwave Oven from its packaging, the first thing we noticed was its clean, minimalist aesthetic. The pure white finish gives it a modern yet unassuming look that blends well with most kitchen decors. The second, more surprising observation, was its weight. As one user noted, “It’s very light though. Much lighter than my old 20l one.” At 11.5 kg, it’s surprisingly manageable for a machine of its substantial size. The setup is as simple as it gets: place the turntable ring and glass plate inside, and plug it in.

The touch control panel is sleek and responsive, with a clear LCD screen that is easy to read. Upon initial inspection, our test unit felt solidly constructed. However, it’s impossible to ignore the handful of user reports citing build quality issues, such as misaligned control panels or loose casing. While our experience was positive, it serves as a crucial reminder to thoroughly inspect the appliance upon arrival. Its sheer size is immediately apparent; this is not a microwave for the space-conscious. It demands a dedicated, generous spot on the worktop, a fact potential buyers must absolutely consider before making a purchase. You can see the full dimensions and check if it fits your space online.

Key Benefits

  • Spacious 32-litre capacity is perfect for large dishes and family meals.
  • Powerful 1000W output with Inverter technology ensures fast and even cooking.
  • The intelligent Genius Sensor for reheating takes all the guesswork out of timings.
  • Highly effective Quick Defrost function thaws food without cooking the edges.

Limitations

  • Its large size requires a significant amount of countertop real estate and ventilation space.
  • Concerning reports from some users regarding inconsistent build quality and durability.

A Deep Dive into the Panasonic NN-ST45KWBPQ’s Performance

A microwave’s true worth is proven not on the spec sheet, but on the countertop. We spent weeks putting the Panasonic NN-ST45KWBPQ 32L Microwave Oven through a gauntlet of real-world kitchen tasks, from defrosting a forgotten chicken breast for a last-minute dinner to reheating delicate leftovers and preparing a baby’s first puree. It was here, in the daily grind, that its advanced features truly began to shine.

Power and Precision: The Inverter Technology Difference

The cornerstone of this microwave’s superior performance is Panasonic’s Inverter technology. Traditional microwaves operate on a crude “on-off” pulse system to simulate lower power levels. To achieve 50% power, they simply blast the food at 100% power for half the time and turn off for the other half. This is the culprit behind rubbery chicken and hot-and-cold spots. Inverter technology, by contrast, delivers a continuous, controlled stream of energy at the precise power level required. This is not just marketing jargon; the difference in results is night and day.

Our first test was a notoriously difficult one: reheating a slice of homemade lasagna. With our old microwave, this was a fool’s errand that resulted in a bubbling, hardened perimeter and a lukewarm core. With the Panasonic, we used a medium power setting for a few minutes. The result was astonishing. The cheese was perfectly melted, the pasta was tender, and the sauce was evenly heated all the way through—no hot spots, no cold spots. We then tried poaching a salmon fillet, a task that would be unthinkable in a lesser machine. Using a low power setting (around 300W), the Inverter technology gently cooked the fish, leaving it moist and flaky. This level of precision cooking is a feature that really sets it apart from budget models and elevates it from a simple reheating device to a genuine cooking tool.

The “Genius Sensor”: Taking the Guesswork Out of Reheating

Perhaps the most-loved feature, both in our tests and among users, is the “Genius Sensor.” One user perfectly summarized its magic: “It analyses the amount of steam to perfectly reheat/cook without you adding times or weights.” This single feature eliminates the most common microwave frustration: “How long do I put this in for?” The sensor automatically detects the amount of vapour released from the food and calculates the remaining cooking time and power level accordingly. It’s brilliant in its simplicity and effectiveness.

We tested the Sensor Reheat program on a variety of foods. A bowl of chilled lentil soup was heated to the perfect eating temperature without a single stir. A plate piled high with leftover roast chicken, potatoes, and vegetables—a mix of densities that usually guarantees uneven heating—came out piping hot and ready to eat. The microwave beeped precisely when the job was done. It never once overcooked or boiled over. This is a game-changer for busy families or anyone who is tired of the ‘heat, stir, heat again’ dance. It builds confidence in the appliance, allowing you to simply place your food inside, press one button, and trust that it will come out right every time.

Beyond the Basics: Defrost, Auto Programs, and the Junior Menu

While Inverter and Sensor technologies are the headliners, the supporting features of the Panasonic NN-ST45KWBPQ 32L Microwave Oven are equally impressive. The defrost function, which one user affectionately dubbed “chaos defrost,” is a testament to the power of Inverter technology. We defrosted a 500g block of frozen beef mince, and true to the user’s claim, it thawed it perfectly without cooking the outside. The meat was left cool and ready for cooking, a feat many microwaves struggle with.

The 21 auto programs offer convenient shortcuts for common foods. While seasoned cooks might prefer manual control, these presets are excellent for quick jobs like cooking fresh vegetables, rice, or pasta. They provide a reliable starting point and often get the timing spot-on. The most unique offering, however, is the dedicated Junior Menu. With settings for Vegetable Puree, Fruit Puree, and Porridge, it’s a wonderfully thoughtful inclusion for parents. We tested it by making a simple apple puree, and the microwave cooked the apple chunks until they were perfectly soft and ready to be mashed. It’s a niche feature, but for its target audience, it’s an incredibly useful tool that simplifies a key part of caring for young children.

Design, Usability, and Living with a 32L Giant

From a usability perspective, the microwave is straightforward. The touch panel is clearly labelled, and the bright white LED interior light provides excellent visibility, so you can easily monitor your food as it cooks. The 32-litre interior is cavernous, easily accommodating our largest casserole dishes and dinner plates with room to spare. This is a huge advantage for family cooking and meal prep.

However, this capacity comes at a cost: space. We must reiterate the user warning: “Please make sure you have room though- it’s huge.” The dimensions of 52.5 x 40.1 x 31 cm are considerable, and that’s before accounting for the necessary ventilation gap. One user noted their unit made the plug area warm, forcing them to pull it further from the wall. This is a critical safety consideration. Before you even consider purchasing, take a tape measure to your worktop. If space is tight, this model is not for you. While its performance is stellar, its physical presence cannot be ignored, making it essential to check the latest price and confirm it’s the right fit for your kitchen’s layout.

What Other Users Are Saying

Scouring user feedback reveals a largely positive consensus that mirrors our own findings, but it also highlights some important caveats. The overwhelming praise is directed at the microwave’s core functions. Many, like one happy customer, celebrate its performance, noting it has a “larger than average sized turntable suitable for using larger dishes” and is “great for cooking family meals.” The 1000W power, Sensor Reheat, and “chaos defrost” features are consistently highlighted as standout benefits that make daily kitchen tasks significantly easier.

However, the praise is tempered by consistent and concerning reports about build quality. Several users reported receiving units with “misaligned and loose” control panels or casing that was “open” upon arrival. This suggests a potential lapse in quality control that buyers should be aware of. The most alarming piece of feedback came from a user who reported their appliance “has just caught fire” after a couple of years of use. While this appears to be a rare and extreme case, it’s a serious data point that underscores the importance of registering the warranty and never leaving the appliance unattended during operation, especially in the early days of ownership.

How Does It Compare? Panasonic vs. The Competition

The Panasonic NN-ST45KWBPQ 32L Microwave Oven is a formidable machine, but how does it stack up against other popular solo microwaves? We’ve compared it to three distinct alternatives to help you find the perfect match for your needs.

1. Russell Hobbs RHM2563 900W Microwave

Russell Hobbs RHM2563 Digital 900W Solo Microwave, Stainless Steel, 25 l
  • the russell hobbs rhm2563 microwave has a stylish and professional outlook, boasting an attractive mirror door finish. as well as an appealing look, this appliance also includes impressive...
  • the rhm2563 from russell hobbs has a spacious 25 litre cavity capacity, comfortably fitting a large size dinner plate. it comes with a removable and dishwasher safe glass turn-table for easy cleaning.

The Russell Hobbs RHM2563 offers a slightly smaller package with a 25-litre capacity and 900W of power. Its key differentiator is its sleek stainless steel finish, which may be preferable for those matching other kitchen appliances. While it lacks the advanced Inverter and Sensor technology of the Panasonic, it’s a capable and reliable mid-size option for smaller families or couples. If you don’t need the massive 32L capacity and prefer a more traditional metallic look, the Russell Hobbs is a very strong contender at a potentially more accessible price point.

2. Russell Hobbs RHM2064C 20L 800W Cream Microwave

Russell Hobbs RHM2064C 20L 800W Cream Digital Heritage Microwave with 5 Power Levels, Automatic...
  • The Russell Hobbs RHM2064 microwave has a sleek and stylish contemporary design, boasting an attractive mirror door finish. As well as an appealing look, this appliance also includes impressive...
  • The RHM2064 from Russell Hobbs is a 20 litre cavity capacity microwave, comfortably fitting a standard size of dinner plate. It comes with a removable and dishwasher safe glass turn-table for easy...

For those where kitchen space is at an absolute premium, the Russell Hobbs RHM2064C is the answer. With a compact 20-litre capacity and a more modest 800W of power, this microwave is designed for individuals, small apartments, or as a secondary appliance. Its charming retro-inspired cream design is a major selling point, adding a touch of style to the countertop. It won’t compete with the Panasonic on raw power or intelligent features, but it’s the ideal choice for someone who values aesthetics and has basic reheating and defrosting needs.

3. Panasonic NN-ST48KSBPQ 32L Microwave Oven

Sale
Panasonic NN-ST48KSBPQ Inverter Microwave Oven with Glass Turntable, 32L, 1000W, 25 Auto Programmes,...
  • FAMILY-SIZE COOKING: The large 32L capacity and spacious 34cm glass turntable give you greater flexibility to use larger dishes and plates to cook for the whole family and any occasion
  • GENIUS SENSOR: Experience excellent results with every meal thanks to the advanced sensor that measures internal steam levels to set the best cooking time. Simply select the preferred Sensor Auto...

This model is the Panasonic’s closest sibling and direct competitor. It shares the same generous 32L capacity, powerful 1000W output, and crucial Inverter technology. The primary differences lie in its aesthetics and programming. The NN-ST48KSBPQ features a premium stainless steel exterior and offers 25 auto programs compared to the 21 on the white model. The choice between these two largely comes down to personal preference: do you prefer a white or stainless steel finish, and are the extra four auto programs worth any potential difference in price? For those who want Panasonic’s excellent core technology in a more metallic package, this is the obvious alternative.

The Final Word: Is the Panasonic NN-ST45KWBPQ 32L Microwave Oven the Right Choice for You?

After extensive testing, we can confidently say that the Panasonic NN-ST45KWBPQ 32L Microwave Oven is a top-tier performer that elevates the solo microwave from a simple reheating box into an intelligent cooking assistant. Its Inverter technology delivers exceptionally even cooking, the Genius Sensor is a revelation for reheating leftovers, and its massive 32-litre capacity makes it an ideal workhorse for any busy family kitchen. It simplifies daily tasks and produces results that lesser microwaves simply cannot match.

However, this recommendation comes with two important conditions. First, you must have the countertop space to accommodate this gentle giant and its ventilation needs. Second, the user feedback regarding build quality cannot be ignored. While our unit was flawless, buyers should inspect their purchase carefully upon arrival. If you can meet those conditions, you will be rewarded with one of the most capable and intelligent solo microwaves on the market. For families, batch cookers, and anyone tired of playing the microwave lottery, this machine is a fantastic investment in convenience and quality. If you believe its power and intelligence are the right fit for your home, you can get the full specs and check availability here.

Last update on 2025-11-07 / Affiliate links / Images from Amazon Product Advertising API