Reheating rolls is doable. The easiest method would be to reheat them low and slow in the oven. You can also use the air fryer, but you have to be careful not to burn them. Reheating in the air fryer is the best way to regain a crispy outer texture.  To reheat in the air fryer, preheat and cook at 370°F/190°C for 3-4 minutes. Check the internal temperature of the egg roll to be certain it’s heated all the way through.