Soaring air fryer sales can be attributed to them being more energy-efficient and cost-effective alternatives to ovens. Running costs are significantly lower as they heat up quicker and cook food faster, so the overall cooking time of food is slashed. Don’t overcrowdIt is important to leave room between items so hot air has enough space to flow and cook food properly. Recommended reading:I tried making air fryer pancakes and it was a huge failAldi to launch air fryer £110 cheaper than similar modelsFood and other items that should never go in your Air FryerPreheatThere’s a debate surrounding if air fryers need to be preheated, and while it isn’t always necessary, it does help with getting the signature crispiness the devices are famous for. A dirty air fryer will increase energy consumption, so preventing build-up and taking steps to make it easier to clean is important.