Our home economist checks how easy the controls are to use, the clarity of the labels, using the grill and oven shelves, and cleaning the inside and outside of the oven. The ease of use score accounts for 40% of the overall score.

Our priority is testing the models you'll see in stores and major online retailers. To do this, we check current market data to see what's most popular. We'll also test models that a lot of members have requested.

We have our own on-site kitchen lab, staffed by home economist Fiona Mair. Fiona develops all our recipes for testing kitchen appliances, and has cooked more than 8000 scones, 4000 chickens, 1000 meringues and 500 pizzas in her 20 years at CHOICE. Along with test coordinator Chantelle Dart, Fiona puts ovens through their paces by cooking scones, meringues, roast chicken and pizza, and toasting bread. By doing this, they test the oven's ability to perform over a range of temperatures, times and functions.

Our expert testers – Fiona Mair and Chantelle Dart – have many years combined experience in testing kitchen appliances.

Unlike other product review sites, we don't accept free test models from manufacturers. This allows us to be independent and review without interference. Instead, we buy products anonymously from a variety of retailers, then bring them into our labs. This means we get what you'd get, and can be sure the model has not been potentially 'tweaked' for better performance.