How to Reheat Mashed Potatoes in Microwave? (3 popular methods exposed)

Leftovers are one of the best parts of a big holiday meal (boy you can say that again), and when it comes to leftovers, mashed potatoes are the best (yessir). You can eat them cold right out of the fridge (I prefer not to), but what if you want to warm them up?


How to reheat mashed potatoes in the microwave?

Cover your leftover potatoes and microwave them for 1 minute on high. Stir potatoes every minute until warm. Remember to constantly stir for even reheating. Enjoy!


After doing more research, I found more information you need to know, so keep on reading…



The Right Tool for the Right Job? It is Your Microwave

Some people won’t recommend reheating mashed potatoes in the microwave, probably because microwaved mashed potatoes can sometimes get sticky.


But the microwave is not to blame. It’s because someone made a mistake. In a microwave, it’s easy to get something very hot…


Like, depending on how much food you are reheating, you can reach 131 to 185 F in a matter of seconds. But that doesn’t mean mashed potatoes can’t be reheated in a microwave.


In fact, it’s just right for the job. There is no better way to do it. When you reheat mashed potatoes on the stove, they can stick to the bottom of the pot. Using a slow cooker can take up to an hour.


Small amounts can be re-heated in the oven, but it takes too long. And it’s just too much trouble to use a double boiler. It turns out that the microwave is the best way to reheat mashed potatoes.


Just put your mashed potatoes and a tablespoon or two of milk or cream in a bowl that can go in the microwave. Wrap the bowl tightly in plastic wrap and heat it in the microwave for 60 seconds at 50 percent power.


Stir, taste for heat, and repeat as needed, heating for 60 seconds at a time and stirring in between, until you get the right temperature. These 60-second bursts at 50% power make sure the potatoes don’t get too hot, so they come out creamy instead of gummy.



How to Reheat Mashed Potatoes the Quickest?

When you just want mashed potatoes quickly and are already reheating food in the microwave, try this: Move the potatoes to a dish with a lid and heat them at half power in the microwave for five minutes, stirring them every so often.


Once the soup is hot, stir it well and add more milk and butter as needed. FYI: For safety, all leftovers should be heated to at least 165°F and put away in the right way within two hours of cooking.


3 Methods to Heat Up Mashed Potatoes

1. The slow cooker


If you have a crockpot, turn the heat on it to low and add cream and butter to your mashed potatoes to keep them moist. Make sure the mashed potatoes are smooth by stirring them as they warm up. Serve when they’re hot enough and the texture is right.

2. On the stove


If you have guests coming over and want to keep them busy while dinner is cooking, put your mashed potatoes back in the oven. Just put them in a casserole dish that can go in the oven and cover it with aluminum foil or a lid. Put them in an oven that is heated to 375 degrees Fahrenheit for 30–40 minutes.


3. Using a microwave


If you’ve ever tried to heat up leftover fries in the microwave, you know how disappointing it can be. What used to be nice, crispy fries are now soft and limp.


The same can’t be said about mashed potatoes, though, because they have a different texture that lets them stand up to the heat of a microwave. That means that the best way to heat up mashed potatoes is in the microwave.


It’s easy and very quick. Just put the mashed potatoes in a dish that can go in the microwave and cook them at half power for about 5 minutes, stirring them every now and then.


Once they are hot, stir them again well and, if needed, add milk and butter. No matter how you cut them, potatoes are delicious both right away and the next day, when they are mashed.


Using a double boiler to heat up mashed potatoes | How to correctly do it

On the stove, bring some water to a boil in a pot. Put your leftover mashed potatoes in a bowl that can take heat and stir in some more milk, stock, cream, or butter…


Place the bowl over the water, but don’t let the bowl and water touch. As the steam from the water warms up your mash, stir it every once in a while. Make sure there is a 1–2 inch gap between the water and the bottom of the bowl for best results.



How to use a double boiler to reheat mashed potatoes:


  • Fill a pot with a few inches of water and bring it to a boil.

  • Put your leftover mashed potatoes in a bowl that can handle heat and add milk, cream, stock, or butter.

  • Set the bowl on top of the water with a gap of 1 to 2 inches between the bottom of the bowl and the top of the water.

  • As your mash warms up, stir it from time to time (gently).

  • Serve once warm until you are happy.


How long do mashed potatoes stay good for?

When thinking about how long mashed potatoes will last, keep in mind that potatoes are just potatoes. They can be mashed, roasted, fried, baked, or scalloped, but their shelf life is the same either way: three to five days.

But is only guaranteed if you store your mashed potatoes correctly, which means putting them in the fridge within one to two hours of making the dish. If you leave your potatoes out longer than that, bacteria will grow, and you’ll have to throw them away.


The dairy in mashed potatoes doesn’t help, either. If your mashed potatoes smell or look bad, you can tell they are no longer good.


How to Keep Mashed Potatoes in the Freezer?

If you want to know if you can store mashed potatoes in the freezer, the answer is yes. Put them in airtight containers or strong freezer bags and freeze them. If you store your mashed potatoes correctly, they will last in the freezer for 10 to 12 months.


Related Questions:

Reheat mashed potatoes in air fryer?



  • Place the air fryer baking pan and basket with the remaining mashed potatoes inside.

  • Incorporate cheese, butter, or both!

  • Cook in the air fryer at medium heat.

  • Serve.


Can you reheat Instant mashed potatoes?



How to Reheat Mashed Potatoes in Microwave? (3 popular methods exposed)