Microwave 40 litre

40L is a huge capacity for a home microwave, and there aren’t too many available in this size category. Those that are available are suitable for big families who need to microwave large quantities of food on a regular basis. Listed below are all the Microwave 40 litre options and the microwave 40 litre capacity we’ve reviewed so far.

microwave 40 litre capacity

Who should buy a 40L microwave?

40L microwaves are amongst the largest home models available at the moment. There aren’t too many microwaves this size available – the Sharp R959SLMA is the only one we’ve reviewed so far – but more are likely to be released in the future.

Microwaves of this size are designed for people who need to cook a huge amount of food on a regular basis. If you regularly cook for many people at the same time, then a 40L combination oven may be an option to consider. These microwaves have a large interior capacity, are capable of browning food and also have a built in convection oven.

If you just want to use your microwave for regular cooking, then a 40L model probably isn’t required. They take up a lot of space on the kitchen work surface and are expensive.

Microwave 40 litre

Listed below are all of the 40L microwaves that we’ve reviewed so far. There aren’t many on the market, but whenever a new model is released in this category we’ll add it to the list below. Each review contains information about the microwave, including its features and settings, along with buy opinions and price info.

The Sharp R959SLMA 40 litre combination microwave oven is one of the most popular in the UK at the moment. With its large capacity, 900W of power and quartz grill, it’s no surprise that the Sharp R959SLMA has been bought by thousands of customers. Keep reading this Sharp R959SLMA review to learn more about the microwave, including its features, positives and negatives.

Sharp R959SLMA Features

Sharp R959SLMA digital microwave ovens come with a range of advanced features, including touch control, two shelf cooking system and auto cook menu. The Sharp R959SLMA also comes with grill, microwave and convection oven options, make it a suitable replacement or addition to a conventional oven.

The microwave is designed to offer a variety of different cooking options depending on your requirements. The mix of grill, microwave and convection ovens means that the Sharp R959SLMA is suitable for baking, roasting or grilling but at a much faster speed. The large capacity also means that the microwave is capable of handling big meals.

A quartz grill is used in the Sharp R959SLMA to allow for speedy cooking. The grill is also straightforward to clean, and provides greater internal space.

The Sharp R959SLMA is certainly an impressive model. With its stainless steel, imposing design it’s sure to suit most modern kitchens. The large 40 litre capacity of the microwave does mean that it may not be suitable for smaller kitchens though.

Overview of Sharp R959SLMA features:

  • Quartz grill
  • Conventional oven
  • Large 40L capacity
  • 900W
  • Range of cooking options
  • Sharp R959SLMA Dimensions: 550x537x386 mm

Sharp R959SLMA Combination Microwave Reviews

The Sharp R959SLMA combination microwave oven is one of the most popular on shopping sites at the time of writing. It has over many reviews, with the vast majority of reviewers extremely happy with the microwave and its features.

Some of the positive features mentioned in reviews of the Sharp R959SLMA combination oven include:

  • Large combination microwave oven that’s capable of handling big meals
  • Despite only 900W of power (many combination ovens have at least 1000W) the Sharp R959SLMA cooks quickly and efficiently
  • Easy to clean
  • Efficient grill
  • Efficiently combines grill, conventional oven and microwave capabilities
  • Ceramic turntable doesn’t stain easily like other models
  • Large volume is perfect for handling large amounts of food
  • Controls are simple and intuitive to use
  • A “joy to use” in the words of several reviewers!

There are some negative reviews of the Sharp R959SLMA, although most of these appear to come from customers who have received a defective model (which should always be replaced quickly and easily). One comment is that the Sharp R959SLMA is too big, and requires a safety spacing around it. Others mention that the two they’ve owned haven’t lasted more than three years, although we’re not sure whether this was an isolated case.

Sharp R959SLMA Conclusion and Rating

The Sharp R959SLMA combination microwave is an excellent model. We’ve awarded it our maximum rating, as we believe it offers excellent value for money and a wide range of different features. If you’re looking for a large and powerful combination oven, the Sharp R959SLMA is definitely one to consider.

How to buy a microwave

This buying guide is what you need if you’re looking for a new microwave.

Your Pizza Rolls deserve a good microwave. This countertop wonder, whose origins date back to the 1940s, is probably one of the most frequently used appliances in your kitchen thanks to its ability to reheat food fast (and cook a mug cake or two). There are a variety of options when it’s time to select a microwave, so we’ve broken down the options you have when you’re ready for a new microwave.


The first decision you need to make about a new microwave is where in your kitchen you want to put it. The location affects the price, features, size and installation of the appliance. You have three main options:

Tyler Lizenby/CNET


This is the most common type of microwave. They generally cost less and are significantly easier to install than other models. Just find a spot on the counter for it to sit, plug it into an outlet and you can use it right away.

The biggest issue with the countertop microwave is how much space it needs. If you have limited room on your countertop, you may either want to look at the smaller countertop models available, look into placing your microwave on a small cart, or consider another style of microwave.

Price: $40 to $700

External dimensions: From roughly 10 by 18 by 14 inches for compact models to roughly 14 by 24 by 20 inches for larger models

Internal capacity: Less than 1 cubic foot to more than 2 cubic feet

Wattage: Typically 600 to 1,200 watts

Some of GE’s stoves and over-the-range microwaves are connected via Bluetooth.Tyler Lizenby/CNET


You install this style of microwave above your range, which will save you some counter space. These models have vent systems that take the place of the oven hood and lights to illuminate your cooktop.

Price: $190 to $1,300

External dimensions: Usually wider than countertop models, about 16 by 30 by 15 inches

Internal capacity: Less than 1 cubic foot to more than 2 cubic feet

Wattage: Typically 600 to 1,200 watts



Built-in models that you place among custom cabinets or paired with built-in, full-sized wall ovens are the most high-end (aka expensive) types of microwaves. Some microwaves in this category are even designed specifically as drawers with a compartment you pull out for your food.

Price: $500 to $5,000 and up

External dimensions: This varies widely depending on type, and drawers tend to have more depth than countertop or over-the-range models, hitting about 15 by 30 by 26 inches

Internal capacity: Less than 1 cubic foot to more than 2 cubic feet

Wattage: Typically 600 to 1,200 watts


It’s important to find the right-sized microwave that will meet your food needs and fit in the space you have for it. First, you want to measure the counter or other space where you plan to put your microwave. Then, measure the height, width and depth of any model you’re considering to find out if it will fit on your counter top, over your range or in a custom spot. The external dimensions can vary a lot, from 10 by 18 by 14 inches on the smaller side to 14 by 24 by 20 inches on the larger side.

Then there’s also the internal capacity, which can range from less than 1 cubic foot to 2 cubic feet or more. There doesn’t seem to be any set rule for how internal capacity correlates to size (like 1 cubic foot = small, 1.5 cubic feet = medium, etc.), but here’s an attempt to break it down:

Compact: Under 1 cubic foot

Midsize: 1 to 1.5 cubic feet

Full-size: 1.6 to 2 cubic feet

Extra-large: More than 2 cubic feet

Most microwaves are somewhere around 1.4 to 1.8 cubic feet. Still not sure which size you need? If you’re out shopping, bring in a plate or bowl from home that you plan to use often to make sure that it fits inside the microwave.

Still in doubt? Measure everything, take notes and check with your appliance retailer for help deciding what would work best. For over-the-range and other built-in models, you most likely won’t be the one installing your new microwave, so you can always avail yourself of their expertise.


Microwave wattage equals power. In general, the higher the wattage, the faster and more evenly your food will cook. Most microwaves sit somewhere between 600 to 1,200 watts. Larger, more expensive microwaves tend to have a higher wattage, so this is a price and size consideration that can strongly influence microwave cooking performance.

This GE microwave has scan-to-cook tech via a related app.Chris Monroe/CNET


Many microwaves share common functions. Here are some microwave cooking essentials: cook time, defrost, power level and timer. Each one requires your direct input, but they are usually very easy to set. Most microwaves have touch panel controls and a rotating carousel to spin your food for more even cooking.

Default settings

Many microwaves come with preset cooking modes so you only have to press one button to automatically cook a dish. For example, many microwaves have a “popcorn” button that will cook your bag based on factory settings. This can be handy for common dishes you heat in the microwave, but you’ll have to figure out if the microwave’s default cook times work for your own food. Other common presets include: baked potato, pizza, beverage, frozen dinner and reheat.


Manufacturers are increasingly including features in microwaves that mimic what we see in full-size ovens, such as a broiler. This is a good addition for finishing off a dish or cooking something for which you’d prefer more direct heat.


A convection fan that’s built into the back of a microwave oven circulates the heat around the food to cook things more quickly and evenly. (Many new full-size ovens come with at least one convection fan.) However, microwaves with convection fans are generally more expensive than those without.

Inverter technology

Inverter heating is another option available on some high-end models. If you want to heat something at a 50 percent power level, most microwaves actually switch between 100 percent power and 0 percent power to average in at 50 percent power. This doesn’t yield great results if you want to heat something on a lower heat and achieve an even result. So, some models now use inverter technology, which maintains a consistent 50 percent power. That way, you can poach salmon, make a fluffy omelet, etc.

Other advanced features

In addition to new heating technologies, higher-end models usually have more presets than just the basic pizza, popcorn and baked potato standard. Some use moisture sensors to detect food doneness. And we’ve started to see models include LED lighting on the interior.

“Smart” technology, i.e. options that connect microwaves to the internet and other products, aren’t as widespread in microwaves as we’ve seen in other kitchen appliances. However, we’ve seen GE Appliances include Bluetooth technology in some of its over-the-range microwaves. This connection, which GE calls “Chef Connect,” pairs the microwave with compatible GE ranges so the light and fan beneath the microwave automatically turns on when you turn on a burner.

More options

Will the June Intelligent Oven become the next microwave?Tyler Lizenby/CNET

Other small appliances have started to make a case for forgoing the microwave, such as steam ovens that use water to cook for more moist heating or the basic toaster oven that mimics a full-size stove. These options promise to cook more effectively than a microwave, but it might take longer to reheat your food.

Smart countertop ovens have also started to become an option. The June Intelligent Oven uses facial recognition technology to identify food and cook it automatically, and the Tovala Smart Oven will scan packaged meals for automatic cooking, including frozen meals from Trader Joe’s. These options are promising, but the technology is too new to determine whether or not these will become kitchen staples.

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