6 Foolproof Ways to Reheat McDonald’s Fries

Reheat Mcdonalds Fries

To heat Mcdonald’s fries is an extreme sport. You can either have crisp pieces or sad, soggy fries – there’s no in-between.

Whether it’s a Classic McDonald’s Hamburger or a dreamy Quarter Pounder, crispy sticks of golden potato goodness are the perfect sides. But what if you have some leftover fries to enjoy with your reheated McDonald’s burger?

Read on as we explore a detailed guide to help you reheat leftover Mcdonald’s fries like a pro! In another article, we have a page that will help you become a pro at reheating food in general, 

6 Foolproof Ways to Reheat McDonald’s Fries

Here are six ways you can reheat McDonald’s fries and not end up with dehydrated, raisin-wannabe potatoes:

Reheat McDonalds Fries On a Stovetop

Using a stovetop is the easiest method in the rulebook because you’ll likely have the equipment you need. Plus, since you’re frying them again, you can’t mess it up.

Start by coating your skillet or non-stick pan with enough vegetable oil to cover and preheating over medium heat. If you’re feeling alté, now is the time to season the fries with your favorite spices. 

When the pan begins to shimmer, add the fries and shake the pan to even them out in a single layer. Toss continuously for anywhere from 30 seconds to 2 minutes, resisting the ever-present urge to look away. Remove from the stove and serve immediately.

Reheat McDonalds Fries in Air Fryer

Need I say more? Everyone and their grandma can reheat McDonald’s fries in an air fryer.

Start by preheating the air fryer to its hottest setting, which is usually 400°F. Next, add the leftover fries to the air fryer basket, making sure they aren’t touching one another. Cook for 1 minute, give the basket a good shake n’ toss, and cook for another 1-2 minutes until crisp.

One great perk of using an air fryer is that you can skip the oil. Don’t miss out on the seasoning, though!

Reheat Mcdonalds Fries In Air Fryer
Image Source – Canva.com

Reheat McDonalds Fries In an Oven

Reheating McDonald’s fries with an oven isn’t the fastest method, but it is the best way to reheat a large quantity of fries. So, this method will come in handy if you have leftovers from a party.

Begin by laying a metal sheet into your oven and preheating it to 400°F. Next, toss or spray the fries in some oil, and spread them in a single layer across the hot oven sheet. Bake for 2 minutes, toss, and bake again.

Finally, arming yourself with an oven mitt, take out the reheated fries, and serve immediately.

Reheat McDonalds Fries With a Microwave

The perks of reheating Mcdonald’s fries in the microwave are endless. It is fast, low-effort, and pretty foolproof.

Start by spreading the leftover fries in a single layer inside a microwave-safe dish, and cover with a slightly damp paper towel. Then, cook on high power in 30-second intervals until you’re satisfied with the fries.

Remember, though, that french fries are really thin and usually won’t take more than a minute. Also, microwaved fries won’t have the classic crunch, but you can always restore the crunch by finishing the fries off on a skillet.

Frequently Asked Questions

What is The Best Way to Reheat McDonalds Fries?

The best way to reheat McDonalds fries is the way that is most convenient for you. 

The microwave and stove top methods are great options if you’re looking for quick and easy. But, if you have more time and want crispy fries, you should use the oven or air fryer. 

I recommend the air fryer and microwave combo, though. It creates the perfect reheated fries that are moist on the inside and crisp on the outside.

How to Make McDonald’s Fries

If McDonald’s fries have you in a chokehold, then you’re not alone. Me too.

It isn’t the secret McDonald’s step-by-step formula, but this recipe will have you munching on some homemade World’s Famous Fries:

  1. Whip up a brine using cold water, corn syrup, salt, and white vinegar.
  2. Slice peeled russet potatoes into thin strings, just under 1/2 inch thick.
  3. Soak the potato strings in the brine, cover, and refrigerate for 2 hours or overnight.
  4. Drain the potatoes, rinse twice with cold water, and pat them dry.
  5. Fry the potatoes in batches at 300°F for about 5 minutes, then set aside on a paper towel.
  6. Add vegetable shortening to the oil, increase heat to 400°F, and fry again until golden brown and crispy.
  7. Drain the fries on paper towels and season immediately with salt.
  8. Serve and enjoy!
reheat mcdonald's fries
Image Source – Canva.com

How To Store Leftover McDonalds Fries

Storing leftover McDonald’s fries can be tricky. Here are a few tips to help your store leftover McDonald’s fries:

  1. Wrap the leftover fries in foil or plastic wrap to preserve their texture and flavor. It’ll also keep your fries from drying out. 
  2. Seal the wrapped fries in an airtight container and store them in the fridge. The fridge will keep them at an ideal temperature and prevent them from getting soggy.
  3. The last step is to reheat them. You can’t store cooked leftover fries forever – not even delicious McDonald’s. Always consume your leftovers as soon as you can.

Is it OK to Reheat McDonald’s Fries?

It is perfectly OK to reheat your leftovers McDonald’s fries as long as they haven’t gone bad. A good rule of thumb is to finish your leftover fries in 48 hours.

Why Do Fries Not Reheat Well?

Been there. The most common reason why fries don’t reheat well is the uneven heat from the microwave or oven. Uneven heat will cause leftover fries to soak up oil and become limp and rancid.


Reheating your McDonald’s fries can be traumatizing – especially if you’ve settled for soggy reheated fries all your life. 

It gets better, though. With the right methods, you can enjoy your leftover fries with nearly as much as you did when they were fresh. So whether you reheat McDonald’s fries on the stovetop, microwave, oven, or air fryer, following these instructions will get you the crispiest crunchies.

Remember to resist the urge to look away. Trust me; there’s a thin line between perfect fries and charcoal. Don’t ask how I know!

Now you know how to reheat French fries, go head and read our more general article on reheating food in general.

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