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Can you warm up sweet potato fries?

Yes, you can easily warm up leftover sweet potato fries to restore them to their original crispy, delicious state. Warming up sweet potato fries is a great way to reheat these tasty fries without ending up with soggy or overcooked results.

Can you reheat sweet potato fries?

Sweet potato fries can absolutely be reheated after cooking them the first time. The key is to use the right reheating method to bring them back up to temperature without making them mushy or dried out.

What is the best way to reheat sweet potato fries?

The best way to reheat sweet potato fries is in the oven. Simply spread the fries out on a baking sheet and bake at 400°F for 4-7 minutes, until hot and crispy again. The oven creates a dry heat environment that will recrisp the exterior of the fries without overcooking the interior.

Can you microwave sweet potato fries?

It’s not recommended to reheat sweet potato fries in the microwave. The microwave will make the fries soggy and soft instead of crispy. Microwaves heat food very quickly, which doesn’t allow time for the exterior to recrisp.

Tips for reheating sweet potato fries

Use a single layer

Arrange the fries in a single layer on the baking sheet instead of overlapping or stacking them. This allows the heat to circulate evenly around each fry.

Flip halfway

Midway through reheating, take the pan out and flip the fries over using a spatula. This ensures the fries reheat and recrisp evenly on all sides.

Reheat at 400°F

400°F is the ideal temperature to reheat sweet potato fries. Higher temperatures may burn the exterior before the interior is hot. Lower temperatures won’t make the fries crispy again.

Blot excess oil

Before reheating, blot the fries with a paper towel to absorb any excess surface oil. This prevents the fries from becoming greasy.

Season again

Consider tossing the reheated fries with a little more oil or seasoning so they come out of the oven as flavorful and delicious as when they were first cooked.

How long do reheated sweet potato fries last?

Properly reheated sweet potato fries will stay fresh and tasty for 2-3 days when stored in an airtight container in the refrigerator. Make sure they are cooled completely before storing. The refrigeration slows down the starch retrogradation process that can make reheated fries soggy.

Can you reheat sweet potato fries twice?

It’s best to avoid reheating sweet potato fries more than once. The extra reheating cycle can make them overcooked and excessively dried out. For best quality and taste, make a fresh batch instead of trying to reheat leftovers multiple times.

Common mistakes reheating sweet potato fries

Follow these tips to avoid common mistakes when reheating sweet potato fries:

  • Don’t stack them or let them overlap on the pan. This prevents even reheating.
  • Don’t add oil or seasonings until after reheating. Oil can burn and seasonings toast unevenly.
  • Don’t reheat at a high temp. Stick to 400°F to avoid burning the exterior.
  • Don’t microwave them. The microwave makes fries soggy.
  • Don’t reheat more than once. Multiple reheating cycles make fries dried out.

Extra tips for crispy sweet potato fries

Follow these tips when initially cooking the fries for the crispiest results:

  • Cut the fries evenly so they cook consistently.
  • Rinse cut fries in cold water to remove starch.
  • Dry fries thoroughly before tossing in oil.
  • Use a healthy oil like avocado or coconut oil to fry.
  • Fry at 400°F until browned and crispy, about 15 minutes.

Can you freeze and reheat sweet potato fries?

Yes, sweet potato fries freeze well for longer term storage. To freeze:

  1. Cut and rinse fresh fries, dry thoroughly.
  2. Spread in a single layer on a sheet pan and freeze until solid.
  3. Transfer frozen fries to a freezer bag or airtight container.
  4. Freeze for up to 3 months.
  5. When ready to eat, bake frozen fries at 400°F for 16-20 minutes.

The fries may not get as crispy from frozen as fresh, but they will still be delicious!


Reheating leftover sweet potato fries in the oven at 400°F for 4-7 minutes revives their crispy texture and great taste. Arrange in a single layer, flip halfway through, and avoid overcrowding for the best results. With the proper reheating method, sweet potato fries can be enjoyed again and again as tasty leftovers.