I've had an air fryer for a few months and I really think I must be doing something wrong because I don't see the point of it.
I've used it a few times to heat up frozen food, just to get the hang of how it works. Despite following all the instructions carefully, including batch size, I'm finding that things take up to four times as long to heat up as I'm told they should. And nothing's actually crispy, just warmed up.
What am I doing wrong? Or should I charity shop it?