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How to reheat mashed potatoes in the microwave

Updated April 17, 2017

Freshly mashed potatoes tend to be either light and fluffy or smooth and creamy, depending on how you prepare them. After sitting in the refrigerator overnight, however, mashed potatoes lose their original consistency and become clumpy, cold, stiff and dry. Reheating the mashed potatoes in the microwave will fix the temperature but leave them as clumpy and dry as before. As a result, you must take several extra steps when reheating mashed potatoes in the microwave. With some extra care, your reheated potatoes will be almost as good as they were before you refrigerated them.

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  1. Place the cold mashed potatoes into your microwave-safe container and stir them with your fork to loosen them and break up any clumps.

  2. Sprinkle the mashed potatoes with a few drops of water, then cover the container with cling film. This will help keep the moisture within the potatoes rather than allowing them to become even drier.

  3. Microwave the mashed potatoes for 30 seconds on high, then remove from the microwave and stir with the fork. Replace the cling film and return to the microwave for another 30 seconds. Repeat this process until the mashed potatoes are heated to your liking.

  4. Add butter or milk to taste to the mashed potatoes and stir thoroughly to blend. This will add extra liquid and creaminess back into the mashed potatoes. As this will cool the mashed potatoes slightly, you may need to return them to the microwave to reheat them one last time after blending in these ingredients.

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Things You'll Need

  • Microwave-safe container
  • Fork
  • Cling film
  • Milk or butter

About the Author

Morgan O'Connor

Morgan O'Connor has been writing professionally since 2005. Her experience includes articles on various aspects of the health-insurance industry for health-care newsletters distributed to hospitals as well as articles on both international and domestic travel.

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