A skewer rack is a great way to cook food in an air fryer. It allows you to cook multiple items at once, and it also helps to keep food from sticking to the bottom of the fryer. To use a skewer rack, simply place it in the air fryer and then add your food to the skewer holes. Cook according to your recipe instructions.to use a skewer rack on an air fryer, first preheat the air fryer to the desired temperature. Then, lightly oil the skewer rack and place it in the air fryer. Next, add the skewers to the rack, making sure that they are not touching each other. Finally, cook the skewers for the desired amount of time.