We all know that it’s best to deep fry items in small batches. The same is true for air frying. How many fries you can air fry at one time will depend on the size of your air fryer. For my Phillips Air Fryer - the ideal batch size is fries from 2 medium potatoes ( or 1 pound of potatoes). The Mealthy CrispLid holds a little lesser than that, mostly because I prefer to not stack in the CrispLid basket.