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    Home » Resources » Air Fryer Resources

    How to Reheat Fries in the Air Fryer

    By Emmeline Kemperyd updated March 26, 2026 · Published February 28, 2023 · Leave a Comment

    Total time: 10 minutes minutes
    5 from 2 votes
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    french fries on a plate with two dipping sauces

    If you're tired of soggy microwaved fries, then you need to start reheating them in your air fryer! This guide will help you restore those leftover fries to their crispy glory in just 4-6 minutes, with just a tiny bit of added oil. This recipe has been tested with three different air fryer brands and models, and the result is amazing every single time!

    french fries on a plate with two dipping sauces

    Say Goodbye to Soggy Leftover Fries

    Whether you have leftovers from last night or want to heat up the McDonald's fries you got at the drive through - this guide is for you. Fries make a great side dish even the day after, and especially when you use your favorite appliance the air fryer to reheat them.

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    It truly is the best way to reheat fries and get them back to their crispy glory. Sure, you can give them a new deep fry, but this is so much easier, and all without the grease.

    Want more tips for reheating food in your air fryer? Check out my guide to reheating food in your air fryer.

    Want to make something different with your leftovers? This leftover french fry casserole is delicious!

    Top Tips for the Crispiest Results

    Add seasonings before reheating. Add a bit of oil first to ensure the seasonings stick to the fries, then season as you like before air frying. I like adding a bit of salt or some spices.

    Don't overcrowd your air fryer basket. You can have multiple layers, but don't fill it all the way up

    Adjust cook time depending on how much you're reheating. 4 minutes is generally enough for a small amount of fries, for larger quantities you might need 6 minutes.

    Use high temperature for the crispiest results. The fries don't need to "cook", they just need to heat back up again and regain a bit of crisp. For this reason I like to cook them at a high temperature (400°F or 205°C). Just keep an eye on them so they don't burn!

    a french fry being dipped in ketchup

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    Recipe

    French fries reheated in the air fryer on a plate with dipping sauces.

    Reheating Fries in the Air Fryer for Crispy Results

    5 from 2 votes
    Print Rate
    Course: Main Course
    Cuisine: North American
    Diet: Gluten Free, Low Lactose
    Servings: 2
    Calories: 260kcal
    Cook time: 5 minutes mins
    Preheating 5 minutes minutes
    Total time: 10 minutes minutes
    Author: Emmeline Kemperyd
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    Ingredients

    • 2 handfuls leftover French fries
    • olive oil or cooking spray, optional

    Instructions

    • Preheat air fryer by running it at 400°F (205°C) for 5 minutes.
    • Place leftover French fries in air fryer basket and mix with a little bit of oil, or spritz with cooking spray. Season as desired.
      2 handfuls leftover French fries, olive oil
    • Air fry 4-6 minutes at 400°F (205°C), shaking the fries once halfway. Check to make sure they are heated through, then serve!

    Equipment (may contain affiliate links)

    • Air Fryer*

    Notes

    This recipe has been tested with the following air fryer models (affiliate links): Philips HD9252/90 Air Fryer, Ninja DZ401 DualZone XL Air Fryer and Cosori Pro II.  . Cooking time can vary with your specific model.
     
    Add seasonings before reheating. Add a bit of oil first to ensure the seasonings stick to the fries, then season as you like before air frying. I like adding a bit of salt or some spices.
    Don't overcrowd your air fryer basket. You can have multiple layers, but don't fill it all the way up
    Adjust cook time depending on how much you're reheating. 4 minutes is generally enough for a small amount of fries, for larger quantities you might need 6 minutes.
    Use high temperature for the crispiest results. The fries don't need to "cook", they just need to heat back up again and regain a bit of crisp. For this reason I like to cook them at a high temperature (400°F or 205°C). Just keep an eye on them so they don't burn!

    Nutrition

    Calories: 260kcal | Carbohydrates: 30g | Protein: 3g | Fat: 15g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 9g | Sodium: 490mg | Potassium: 430mg | Fiber: 5g | Vitamin C: 6mg | Calcium: 9mg | Iron: 1mg

    Nutritional information is approximate and automatically calculated, and should only be viewed as an indication.

    Did you make this? Tag me today!Tag @alwaysusebutter and use the hashtag #alwaysusebutter!

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      How to Reheat Chicken Tenders in the Air Fryer

    About Emmeline Kemperyd

    Emmeline Kemperyd is a writer, food blogger, recipe creator and food photographer and the founder of alwaysusebutter.com. She has 20+ years experience creating and simplifying recipes so they taste good, and are quick, easy, and approachable. She is a regular contributor to MSN and her work has been featured by The Guardian, Well+Good, Vulture, SheKnows, Good Men Project, and The Feed Feed, among others.

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    5 from 2 votes (2 ratings without comment)

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    Hi, I'm Emmeline! I love tasty food, but I'm always in a hurry. And I have the quick and easy recipes to prove it!

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