With the functions of the air fryer, we might be tempted to try recipes like kale or spinach chips. The truth is, these snacks are prepared in a dehydrator, not in a convection oven. If you try it, the result will certainly be disappointing. Leafy greens can easily burn and turn bitter in the high heat of an air fryer. Instead, use a food dehydrator or bake them at a low temperature in a conventional oven to achieve the perfect, crispy texture without the risk of burning.