The finance expert has issued a warning to anyone who is using an air fryer instead of an oven - and a method to save money if you're cooking a turkey this Christmas. Get the latest top news stories sent straight to your inbox with our daily newsletter We have more newsletters Get the latest top news stories sent straight to your inbox with our daily newsletter We have more newsletters Martin Lewis , the renowned money-saving guru, has issued a caution to those using air fryers as an alternative to ovens. The contemporary cooking gadget has soared in popularity recently as households seek more economical methods to prepare meals instead of operating larger, conventional ovens.
Yet, Martin has clarified in his BBC Martin Lewis Podcast that employing an air fryer or microwave is not always a cheaper option when compared to a conventional oven. Detailing his 'rule of thumb' for appliance use while making dinner, he offered a straightforward guideline on how to make a cost effective decision. On his podcast, Martin advised: "Let me give you my simple rule of thumb.
First of all, find the wattage of the appliance you're using. If you've got a heated gilet, it might be 50 watts. "When I talk about 'heating the home' it is a lot cheaper to have a heated gilet or something that just heats you rather than heating the whole room.
" Continuing with his explanation, he added: "Then remember 1,000 watts is a Kilowatt. And you pay roughly 34p per Kw per hour." To put things into perspective.