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How to Reheat Fries In The Air Fryer

Gone are the days of tossing leftovers or fearing soggy fries from the microwave. When you reheat fries in an air fryer, they’ll come out just as hot and crispy as when they were freshly made!

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closeup of golden brown french fries in air fryer basket

It’s no secret that french fries are absolutely delicious! Whether it’s curly fries, steak fries, waffle fries, or sweet potato fries, these starchy and satisfying treats disappear fast. Occasionally though, leftovers do occur. 

There’s nothing worse than biting into a limp fry and wondering if it will be too hot or too cold in the center. So, what is the best way to reheat fries? Can your air fryer reheat fries? 

Absolutely, it can! When you reheat fries in the air fryer, you get expertly crisped fries each and every time. 

Reheat french fries in the air fryer for a quick stand-alone snack, or repurpose them in this recipe for Bacon Cheese Fries

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Air Fryer I recommend: Large, easy to clean, square basket, burner on top and bottom. Click to see it.

How to Reheat Fries in The Air Fryer

A full printable version of this recipe with ingredient measurements is available at the bottom of this post.

STEP ONE: Preheat your air fryer to 350 degrees F. 

STEP TWO: Arrange the french fries in a single layer in the basket, taking care to not overlap. 

STEP THREE: Cook for about 2-3 minutes. Remove, serve with your favorite sauces, and enjoy!

What is the Best Way to Reheat French Fries?

Without a doubt, reheating fries in the air fryer is the best way. Although it is the best method, it certainly isn’t the only one. Here’s a quick review of ways you can heat up french fries, along with some pros and cons of each. 

Air Fryer

Reheat french fries in the air fryer once, and you’ll quickly see the benefits.

The dry circulating heat of the air fryer reactivates the oil in the fries, making them perfectly crispy on the outside without drying them out on the inside. It’s the perfect way to revive leftover fries in a matter of minutes.


Another option is to reheat your fries in the oven. It will do the trick, but the results are less predictable. It’s not uncommon to end up with dry, rock-hard fries.

For best results, be sure that your oven is set to at least 400-425 degrees F, and put the fries on a baking sheet lined with parchment paper, aluminum foil, or a wire rack. Bake for about 8-10 minutes, checking and shaking periodically. 

Deep Fryer

If your kitchen is equipped with a countertop deep fryer, this is another reheating option.

This method will definitely make your french fries crispy again but at the expense of lots more oil. It can get a bit messy to do it this way, and the fries tend to come out a bit greasy. 


A stovetop skillet with oil can be used to reheat french fries as well. However, you’ll only be able to work in small batches, and you’ll need to keep a close eye on the skillet.

The pros and cons of this method are similar to reheating in the deep fryer, except you can have more control over the amount of added oil. 


Don’t do it! Microwaving encourages steam and will only make french fries soggy.

Instead, for superbly crispy results, let your air fryer reheat fries!

air fried crinkle cut fries in basket

How Do You Reheat French Fries So They Are Crisp?

It’s super easy to reheat fries in the air fryer so they are crisp! In addition to the instructions listed above, follow these simple guidelines for the best, crispiest results!

  • Don’t Overcrowd. Make sure the fries are arranged in a single layer with no overlapping parts. It’s important for the air to be able to touch the entire surface of each french fry for maximum crisping. If you have a large amount of fries to reheat, simply work in multiple batches. 
  • Rest at Room Temperature First. When time allows, take the fries out of the refrigerator for 30 minutes to an hour before reheating. It’s not a huge deal if you need to skip this step, but it helps your french fries cook more evenly. 

What Types of Fries Can I Reheat in an Air Fryer?

Whether you need to reheat homemade steak fries or leftovers from McDonald’s or Wendy’s, the air fryer is your ally. You can follow the same basic instructions for any potato-based fries, including sweet potato fries. Here are a few helpful links with more detailed instructions: 

shake basket and check periodically to cook fries evenly

How Long Are Leftover Fries Good?

Stored in an airtight container, in the refrigerator, french fries are good for about 3-5 days. That being said, the texture goes downhill after day 2, so try and reheat and enjoy them as quickly as possible. 

Reheating Other Food in the Air fryeR

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closeup of golden brown french fries

Reheat Fries in the Air Fryer

Samantha Erb
Reheat fries in air fryer for crispy, golden brown french fries that are ready in minutes and taste fresh out of the deep fryer.
4.50 from 2 votes
Cook Time 2 minutes
Total Time 2 minutes
Course Air Fryer Recipes
Cuisine American
Servings 1 to 4 servings
Calories 91 kcal


  • Leftover french fries up to 1lb


  • 1. Preheat your air fryer to 350 degrees F.
  • 2. Arrange the french fries in a single layer in the basket, taking care to not overlap.
  • 3. Cook for about 2-3 minutes. Remove, serve with your favorite sauces, and enjoy!


Serving: 1gCalories: 91kcalCarbohydrates: 12gProtein: 1gFat: 4gSaturated Fat: 1gPolyunsaturated Fat: 3gSodium: 61mgFiber: 1g
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About Samantha

I’ve always had a love of cooking and creating new recipes, so it only made sense to create a food blog so I could share those recipes with you. This site is designed to provide easy and flavorful recipes with as little ingredients as possible. That means you still get great flavor combinations without all that extra time and effort. Read more...

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