How to Reheat McDonald’s Fries

We’ve all been there; you went and bought the delicacy that is McDonald’s fries, wound up with leftovers, popped them in the microwave… and they were disgusting. Chances are, you were doing something wrong and didn’t even know. 

Reheating fast food is sadly not as easy as buying it is, and you’ve probably experienced disappointing results. Fortunately, with a little extra time and care, there are ways to restore your McDonald’s fries and get them almost to how they were originally.

Reheating McDonald’s Fries

The key to reheating McDonald’s fries is making sure that they don’t get too dry or too soggy. Either way will make them virtually inedible, with that cardboard-like taste we are all too familiar with.

How to Microwave McDonald’s Fries

The microwave is certainly the easiest way to reheat McDonald’s fries. But, with this method you may end up sacrificing the taste for the time you save. To minimize damage, your best bet is covering them with a damp paper towel.

For the fastest results, spread the fries evenly across a microwave-safe dish and cover with a damp paper towel. Microwave for twenty to thirty seconds. The damp paper towel helps to trap in moisture and give them a gentler reheating. They will likely be slightly soggy, but still good enough to eat.

For better results, try putting the fries into an air fryer or broiler after microwaving. Cover with a damp paper towel again, and heat them for about one minute. This will help to crisp the McDonald’s fries and prevent the dreaded sogginess.

Reheating McDonald’s Fries in the Oven

To reheat your fries in the oven, first preheat to 400 degrees Fahrenheit. While the oven is preheating, set a baking tray in the oven, and spread fries evenly across the tray. Putting the tray in the oven while it’s preheating helps to crisp up the fries in advance. 

Once the fries are on the tray, splash a few drops onto them and cover with a piece of aluminum foil. The water will help trap in moisture, but be careful not to overdo it. Using foil helps to heat the fries evenly. Reheat your fries for two to three minutes.

After this, remove the fries from the oven. Uncover them and lightly spray them with oil. Then cook for another two minutes or so. If you like your fries as crispy as possible, feel free to cook for longer. Just be aware that the longer you cook them, the higher risk there is of drying them out.

Best Way to Reheat McDonald’s Fries

The best way to reheat McDonald’s fries is by using the microwave, and then the oven. It’s an in-between of both methods and is an almost foolproof way to get your fries reheated to your liking without overheating them.

If you just use the microwave, they will be fine to eat but likely too soggy. Putting them in the oven or air fryer for another minute or so helps to even this out and get them nearly to the same crispiness they once had.

How to Revive McDonald’s Fries

To revive McDonald’s fries, you must take an extra easy step or two before reheating. You don’t want them too soggy, or too dry. So, cover with a damp paper towel if using the microwave method, and foil if using an oven. 

The use of oil in between reheating intervals in the oven also helps to give your fries more liveliness. Whichever method you choose, these tips will help you out immensely. 


Properly reheating McDonald’s fries takes a bit more effort than you’re probably used to with reheating fast food. The goal is to make sure that they don’t get too soggy or too dry, so placing them bare in an environment like a microwave will almost ensure that they become too soggy.

The same goes for using an oven–no protection on top of them and they are basically guaranteed to get too dry. So, covering them with a damp paper towel for a microwave and foil for an oven will give you the best possible results.