It takes longer because we are stacking the ribs rather than putting them in one single layer. If you put them in a single layer, they will cook faster but you'll have to do it in separate batches. This way, they will all be done at one time. I used a 7 quart basket air fryer (the basket style air fryer is the most widely sold air fryer on the market). If you have a smaller air fryer or an oven style air fryer, it might take longer (with a smaller air fryer) or faster (if using an oven style air fryer) so keep an eye on the internal temperature. Once it gets to 190F degrees, it's ready.