Microwave ovens

Types of microwaves

There are three types: standard, microwaves with a grill, and convection (also called combination microwaves) that can microwave, bake and grill.

A convection microwave may suit you if you have limited space for a microwave and an oven such as a studio apartment or a caravan. It can also be useful in a full kitchen if you often use more than one oven at a time. A convection microwave is more versatile that a benchtop oven because a benchtop oven can’t microwave.

Convection models can be benchtop or built-in. Some can be installed either way.

Built-in models save on bench space and can be integrated to fit in with other appliances and usually sit flush with cupboards. These models need a “trim kit”, which often needs to be bought separately and should be installed by an electrician.

Benchtop models must be freestanding – they can’t be placed in a cabinet. They also shouldn’t be placed where heat and steam are produced (for example, next to a conventional oven).

What to consider

Features and functions

Generally, the more features and functions, the higher the price. So, think about what you’ll use your microwave for. If you’re only going to reheat cups of forgotten coffee or last night’s leftovers, you won’t need a model with a grill and lots of automatic programmes.

Size and usable volume

If you have a spot in mind for your microwave, then you need to make sure it’ll fit. Check the external dimensions, including the power cord at the back. You’ll need to allow at least 10mm (preferably 50mm) at the sides and back where the heat vents are usually located (for ventilation).

In convection or combination modes, convection models get hotter than standard microwaves, so make sure all minimum recommended clearances are followed. You’ll find these in the installation instructions.

Microwaves vary in size from about 18 to 35L. For a family, look for at least 30L, which will have a larger turntable and more interior height.

Check the usable space – actual capacity can be less than what manufacturers claim. Also make sure your microwave cookware will fit.

Controls

Should be easy to use and read.

Viewing window

If you like to see what’s cooking, or to catch unintended spills, make sure the window is large and gives a clear view.

Oven light

Check it gives good illumination of the turntable.

Child lock

Lets you deactivate the microwave so children can’t use it.

Standalone timer

Lets you time other tasks – such as boiling an egg – without operating the microwave.

Grill

Some models have a grill, which makes them more versatile. You can whip up meals such as mac ‘n’ cheese and potato bake.

Inverter

Inverter models deliver continuous heating at reduced power. For example, if you select 50% power the microwave delivers a true 50% power, not a “pulsed” delivery of full power half the time (like most microwaves do). Manufacturers claim inverter models cook more evenly, but we found this claim doesn’t stack up in our testing. If you have a Bluetooth connection, there’s also a risk your inverter microwave will interfere with it.

Door

It should be easy to open and stay open in position without swinging open or slamming shut.

Cleaning

• Check inside for vents and cracks where grease and grime can accumulate.
• Easily removable racks and turntables make cleaning less hassle.
• Sealed controls are easier to wipe clean
• A stainless-steel exterior looks stylish, but needs more elbow grease to keep clean compared with a plastic exterior.

Microwave functions

Most people don’t get the most out of their microwave and only use a few functions. Reading your manual, and some trial and error, will give you a new perspective on what they can do.

Automatic programmes

These make defrosting, cooking and heating more convenient. Automatic defrost usually prompts you to enter the weight and type of food, then calculates the defrosting time. Common automatic programmes are for potatoes, fresh vegetables, rice, drinks, meat, soups and frozen dinners.

Sensor programmes

These measure vapours emitted during cooking to control cooking time. You don’t have to estimate cooking times and food quantities.

Quick/boost start

This starts the microwave, usually by pressing one button. With most models, the cooking times increases in 30-second or one-minute increments. It’s handy for reheating.

Multi-stage cooking

The microwave performs a sequence of functions, such as defrost then cook.

Adjust time during cooking

Lets you increase or decrease cooking time without stopping the microwave.