Overall score includes:

Performance (70%): Weighted equally on thick-cut frozen chips and crumbed chicken breast nuggets. We also test new models on home-made French fries. This test wasn’t conducted on previously tested models so doesn’t contribute to our overall score.

Ease of use (30%): Assesses how easy it is to assemble, clean and store the cooker and use its controls.

Running costs calculated on 30 minutes’ use 3 times a week (electricity costs of 26¢/kWh).

Prices from a November 2019 survey.