Reheating leftovers in a microwave turns them into a sad, soggy mess. A Ninja air fryer does the opposite — it restores crispness, warms evenly, and makes yesterday’s dinner taste almost as good as fresh. But not every food needs the same time or temperature. That is where a solid ninja air fryer reheating chart becomes essential.
I have tested hundreds of kitchen products over the years. The ones that last are never the flashiest — they are always the simplest, heaviest, and most boring-looking tools in the entire drawer. My Ninja air fryer fits that description perfectly. It is a workhorse, and I have pushed it hard with frozen fruit, stiff bread dough, and solid ice to see where it overheats or stalls. Through all that stress testing, I have dialed in precise reheating settings that work every time.
Key Takeaways
- Pizza reheats best at 350°F for 3 to 4 minutes — keeps crust crisp and cheese bubbly.
- French fries and tater tots need 400°F for 4 to 5 minutes to restore crunch without drying out.
- Chicken tenders and nuggets come back to life at 375°F for 4 to 6 minutes, depending on thickness.
- Leftover casseroles reheat at 350°F for 8 to 10 minutes in an oven-safe dish, not loose in the basket.
Why Reheating in a Ninja Air Fryer Works Better Than a Microwave
The microwave heats food by agitating water molecules. That works for soup but turns breaded items into rubber. An air fryer uses a high-speed fan to circulate hot air around the food, pulling moisture away from the surface while the interior warms gradually. The result is a crust that stays crisp and a center that heats through without turning mushy.
When I stress-test air fryers, I measure how evenly the fan distributes heat across the basket. The Ninja models I have tested maintain a temperature variance of less than 10°F from front to back. That consistency matters for reheating because cold spots leave you with half-warm food, and hot spots burn the edges before the middle thaws.
The Complete Ninja Air Fryer Reheating Chart
Below is my tested chart for common leftovers. Temperatures are in Fahrenheit, times are in minutes. Always preheat your Ninja air fryer for 2 to 3 minutes before adding food — this ensures the cooking chamber is at the target temp from the start.
| Food Item | Temperature (°F) | Time (Minutes) | Notes |
|---|---|---|---|
| Pizza (thin crust) | 350 | 3–4 | Place directly on grate, no parchment |
| Pizza (thick crust) | 325 | 4–5 | Check after 4 minutes |
| French fries | 400 | 4–5 | Shake basket halfway through |
| Tater tots | 400 | 5–6 | Spread in single layer |
| Chicken tenders | 375 | 4–6 | Flip halfway |
| Chicken nuggets | 375 | 4–5 | No need to flip if small |
| Fried fish fillets | 350 | 5–7 | Watch closely — fish dries fast |
| Burritos (wrapped) | 350 | 8–10 | Wrap in foil for first 6 minutes |
| Burritos (unwrapped) | 375 | 5–6 | Place seam-side down |
| Egg rolls | 375 | 5–6 | No need to flip |
| Onion rings | 375 | 3–4 | Single layer, no overlap |
| Mozzarella sticks | 350 | 3–5 | Watch for cheese leakage |
| Roasted vegetables | 350 | 4–6 | Toss with a tiny bit of oil |
| Meatloaf slices | 350 | 6–8 | Cover with foil if browning too fast |
| Steak (pre-cooked) | 300 | 5–7 | Let rest 2 minutes after reheating |
| Burgers (patty only) | 350 | 4–5 | Flip halfway |
| Burgers (with bun) | 325 | 3–4 | Keep bun separate, add last minute |
| Breaded shrimp | 375 | 4–5 | Check at 4 minutes |
| Hash browns | 400 | 5–7 | Shake basket every 2 minutes |
| Casseroles (baked pasta) | 350 | 8–10 | Use oven-safe dish, not loose in basket |
| Casseroles (creamy) | 325 | 10–12 | Stir halfway if possible |
How to Use the Chart Correctly
Step 1: Preheat the Air Fryer
Set your Ninja to the target temperature and let it run empty for 2 to 3 minutes. This step is non-negotiable. A cold basket steals heat from the food, extending cook time and drying out the exterior.
Step 2: Arrange Food in a Single Layer
Overcrowding traps steam. Steam softens crusts. If you pile food, the pieces on top will never crisp. Work in batches if needed — it takes longer overall but gives better results.
Step 3: Shake or Flip at the Midpoint
Halfway through the time, open the basket and shake it (for fries, tots, nuggets) or flip larger items (tenders, fish, burgers). This ensures even heating on all sides.
Step 4: Check Internal Temperature for Meats
If reheating chicken, fish, or beef, use an instant-read thermometer. Chicken should reach 165°F, beef 140°F for medium. Do not rely on time alone — thickness varies.
Adjusting the Chart for Different Ninja Models
Ninja makes several air fryer lines — the standard Air Fryer, the Foodi series with a pressure cook lid, the Speedi with a rapid cooker function, and the Pro models with larger baskets. The chart above works for all of them, but you may need minor tweaks.
Ninja Air Fryer (standard 4- or 5-quart): Follow the times exactly. These models have the most consistent airflow in my tests.
Ninja Foodi (with pressure lid): The fan runs slightly slower in air fry mode because of the larger chamber. Add 1 minute to all times. For example, pizza goes from 3–4 minutes to 4–5 minutes.
Ninja Speedi: This model uses a different heating element layout. I have found it runs about 10°F hotter than the set temperature. Drop the temp by 10°F across the board — set 390°F instead of 400°F for fries, for instance.
Ninja Pro (10-quart): The larger basket means more air volume to heat. Increase times by 1 to 2 minutes, and shake more frequently to compensate for the longer distance the air travels.
If you are shopping for a new model and want to compare performance, our Ninja Foodi Air Fryer Reviews: Our Top Picks for 2026 breaks down which models handle reheating best. For the Speedi line specifically, check The Best Ninja Speedi Air Fryer for 2026 for detailed load testing results.
The Science Behind the Settings
Reheating is a balance between two forces: heat penetration and moisture loss. Heat travels from the outside of the food inward. If the temperature is too high, the surface dries out before the center warms. If it is too low, the food sits in the hot air too long and loses moisture gradually, turning leathery.
For breaded items like chicken tenders, the target is 375°F because that temperature is high enough to crisp the breading quickly but low enough to let the interior reach 165°F without burning the coating. For pizza, 350°F works because the cheese and sauce have high water content — they need gentle heat to melt without scorching.
Fries and tots are the exception. They need 400°F because their surface area is large relative to their volume. The high heat drives off surface moisture fast, creating a crunchy exterior. If you drop the temp to 350°F, the fries will steam inside and come out limp.
When I push an air fryer to its limits, I monitor the heating element temperature with a thermocouple. The Ninja models I have tested cycle the element on and off to maintain the set temperature. That cycling is normal. But if you open the basket too often, the element stays on longer to compensate, which can overshoot the target and burn food. Keep the door closed until the midpoint shake.
Foods That Do Not Reheat Well in an Air Fryer
Not everything belongs in the basket. Here are the items I avoid after testing them multiple times:
- Steamed vegetables — They lose all moisture and turn into dry, shriveled bits. Reheat them in a microwave or stovetop steamer.
- Soups and stews — The fan blows liquid everywhere. Use a stovetop or microwave.
- Soft bread rolls without a crust — They dry out before the center warms. Wrap in foil and use a lower temp (300°F) if you must.
- Cheese-filled items (like stuffed shells) — The cheese leaks out and burns on the heating element. Reheat in an oven or microwave.
- Large cuts of meat (roast beef, whole chicken breast) — The exterior dries before the center reaches safe temperature. Slice thin before reheating.
How to Reheat Multiple Items at Once
If you have leftover pizza and fries, you cannot just toss them in together. The pizza needs 350°F for 3 minutes, and the fries need 400°F for 4 minutes. Here is my tested method:
- Reheat the pizza first at 350°F for 3 minutes. Remove it and set aside on a plate.
- Increase the temperature to 400°F. Let it preheat for 1 minute.
- Add the fries and cook for 4 minutes, shaking halfway.
- While the fries cook, the pizza stays warm on the plate. Serve together.
This takes 8 minutes total instead of 4, but both items come out properly reheated. If you try to compromise on a single temperature, one will be under- or overdone.
Cleaning the Basket After Reheating
Reheating leaves less residue than cooking raw food, but oil and crumbs still accumulate. After each use, I wash the basket with hot soapy water and a non-abrasive sponge. The nonstick coating on Ninja baskets is durable, but it scratches if you use steel wool.
For stuck-on cheese or burnt breading, fill the basket with hot water and a drop of dish soap, then let it soak for 10 minutes. Scrub with a soft brush. Never put the basket in the dishwasher if you want the nonstick to last — the high heat and harsh detergents degrade it over time.
Frequently Asked Questions
What is the best temperature to reheat pizza in a Ninja air fryer?
Set the temperature to 350°F and cook for 3 to 4 minutes for thin crust, 4 to 5 minutes for thick crust. Place the pizza directly on the grate — do not use parchment paper or foil underneath, as that traps moisture and softens the crust. If you want extra crispy edges, add 1 minute at 375°F.
Can I reheat frozen leftovers directly in the Ninja air fryer?
Yes, but you must adjust the time. Frozen leftovers need 50% more time than refrigerated ones. For example, if the chart says 4 minutes for chicken tenders, start with 6 minutes for frozen. Check internal temperature with a thermometer — do not rely on time alone. Also, shake or flip more frequently because frozen items release more steam as they thaw.
Why does my Ninja air fryer make a loud noise when reheating?
A loud humming or rattling usually means the fan blade is hitting something — a piece of food, a crumb, or a loose screw. Turn off the unit, unplug it, and inspect the basket and heating element area. Remove any debris. If the noise persists, the fan motor may be failing. I have seen this happen after heavy use with thick doughs that strain the motor. Contact Ninja support for a replacement.
How do I reheat a burrito in a Ninja air fryer without it burning?
Wrap the burrito in aluminum foil for the first 6 minutes at 350°F. This allows the interior to warm without the tortilla burning. Then remove the foil and cook for another 2 to 4 minutes at 375°F to crisp the outside. Place the burrito seam-side down on the grate to prevent it from unrolling. If you are using a larger model like the Ninja Pro, add 1 to 2 minutes to each step.