Is 450°F significantly better than 400°F for air frying?

For specific foods, yes. Wings and skin-on chicken reach genuinely crispy skin at 425°F to 450°F that 400°F does not achieve in the same cook time. Fries at 400°F produce good results. At 450°F, fries produce restaurant-quality crispness in less time. For vegetables and fish, 400°F is adequate — 450°F may overcook delicate foods.

How does the Ninja AF161 compare to the Cosori Pro II?

The Cosori Pro II has a larger square basket (5.8Q square vs 5.5Q round), app connectivity, and 1750W at 400°F maximum. The Ninja AF161 reaches 450°F with Max Crisp, has a simpler interface, and produces crispier results for high-temperature foods. For overall versatility, the Cosori Pro II is correct. For maximum crispness above all else, the Ninja AF161 is correct.

What is Max Crisp technology?

Max Crisp is Ninja's name for operating at 450°F with enhanced fan speed. At this temperature and airflow, the surface of food reaches the Maillard reaction threshold faster, producing crispness that is difficult to achieve at lower temperatures. It is most effective for high-fat foods like wings and thick-cut fries.

Ninja Air Fryer Max XL Review 2026: The Crispiest 5.5 Quart Air Fryer

400°F is where most basket air fryers stop. The Ninja Air Fryer Max XL AF161 keeps going.

Its Max Crisp function reaches 450°F, and in side-by-side testing against the Cosori Pro II, that extra 50 degrees produced wings with a genuine skin snap and darker, more rendered fat that 400°F simply couldn't match, even with extra cook time.

The 5.5-quart round basket and 1750W element put it roughly on par with the Cosori Pro II on wattage. The round shape does hold noticeably fewer wings per layer than the Cosori's square 5.8-quart basket, about 8 to 9 versus 10 to 12.

That's the real trade-off. The AF161 finishes a batch faster at 450°F, but a household of four will still need two batches to match what the Cosori does in one.

This review breaks down where that trade-off matters and where it doesn't.

What 450°F Actually Does

Most basket air fryers max out at 400°F. The Ninja AF161 Max XL reaches 450°F with its Max Crisp function. That 50-degree difference is more significant than it sounds.

The Maillard reaction — the browning process that produces crispness on the surface of food — accelerates dramatically above 400°F. At 400°F, a chicken wing takes about 25 minutes to reach the crispness level that 450°F achieves in 18 to 20 minutes. But the faster time is not the main benefit: the 450°F result is a qualitatively crispier skin that 400°F cannot produce in any additional time.

The reason is surface moisture. Above approximately 420°F, surface moisture on food evaporates fast enough that the skin surface dries out before the interior moisture has time to steam the exterior soft. At 400°F, interior moisture has more influence on the skin texture. The result at 450°F is a genuinely crispy wing skin that snaps when bitten — a texture only achieved by deep frying or this temperature level in an air fryer.

Wings: The Definitive Test

We cooked identical batches of 10 chicken wings in the Ninja AF161 and Cosori Pro II under identical conditions (same raw wings, same dry rub, same cook time after preheating).

Ninja AF161 at 450°F for 20 minutes: crispy skin with snap, rendered fat, dark mahogany color on the tips.

Cosori Pro II at 400°F for 25 minutes: crispy skin but without the snap, less rendered fat, lighter color.

Both produced excellent wings. The Ninja AF161's 450°F result was superior — it is the closest to a professional fryer output of any basket air fryer we have tested.

The Round Basket Trade-Off

The Ninja AF161's basket is round. The Cosori Pro II's basket is square. At the same quart rating, square holds more usable single-layer food.

The AF161 at 5.5 quarts round holds about 8 to 9 wings in a single layer. The Cosori Pro II at 5.8 quarts square holds 10 to 12 wings in a single layer.

For wing cooking specifically, the AF161's smaller effective capacity means two batches for a household of four. At the AF161's 450°F speed (20 minutes vs the Cosori's 25), two batches takes 40 minutes versus 25 minutes in the Cosori for the same quantity.

The practical trade-off: if you care most about crispness per batch, the AF161 is correct. If you care most about cooking all wings in one batch, the Cosori Pro II is correct.

Interface: Simplicity Over Features

The Ninja AF161 has a digital display with straightforward controls: temperature, time, and function selection. No app, no WiFi, no preset library.

This simplicity is a feature for experienced cooks who know their settings. It is a limitation for households that want guided cooking. The Cosori Pro II's app with 100+ recipes is a better starting tool for new air fryer users.

After learning your standard settings (wings at 450°F for 20 minutes, fries at 400°F for 15 minutes, salmon at 380°F for 12 minutes), the AF161's simple interface is more efficient than navigating an app.

Who Should Buy the Ninja AF161 Max XL

Buy it if:

Wings, fries, and crispy-skinned chicken are your primary air fryer foods
Maximum crispness is more important than maximum capacity
You prefer simple dial/digital controls without app dependency
Two to four people — adequate capacity without overcrowding

Do not buy it if:

You need maximum capacity in a single layer (buy the Cosori Pro II)
You want app connectivity for recipe guidance (buy the Cosori Pro II)
You cook for five or more people regularly (buy the Ninja DZ201 dual-basket)