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How to Reheat Mashed Potatoes

Mashed potatoes thicken in the fridge as the starch absorbs moisture. Add warm milk or cream (not cold) while reheating and stir frequently. Stovetop over low heat with a splash of liquid takes 5-7 minutes and gives the smoothest result. The microwave works for speed but creates hot spots - stir every 30 seconds.

By the CookTimeGuide Editorial TeamKitchen-tested Jan 2026USDA verified

Stovetop

Best for: Creamy, smooth results

5-10 min

  • Add butter and milk while stirring over medium-low heat
  • Stir frequently to prevent scorching on the bottom

Microwave

Best for: Quick single servings

3-5 min

  • Add a splash of milk, cover and stir every minute
  • Use medium power for more even heating

Oven

Best for: Large batch reheating

20-30 min

350°F

  • Spread in a baking dish, dot with butter, cover with foil
  • Top with cheese in the last 5 minutes for a gratin-style finish

Kitchen Timer

08:00

8 min preset

min
:
sec

Storage & Safety

Refrigerate within 2 hours, consume within 3-5 days

Always reheat to an internal temperature of 165°F. ?

Frequently Asked Questions

What is the best way to reheat Mashed Potatoes?

The best way to reheat Mashed Potatoes is using Stovetop for 5-10 minutes. This method is best for: Creamy, smooth results.

How long to reheat Mashed Potatoes in the oven?

Reheat Mashed Potatoes in the oven at 350°F for 20-30 minutes. Spread in a baking dish, dot with butter, cover with foil

Can I reheat Mashed Potatoes in the microwave?

Yes, microwave Mashed Potatoes for 3-5 minutes. Add a splash of milk, cover and stir every minute

How long can you store leftover Mashed Potatoes?

Refrigerate within 2 hours, consume within 3-5 days

What temperature should reheated Mashed Potatoes reach?

Reheated Mashed Potatoes should reach an internal temperature of 165°F to be safe. Use a food thermometer to verify.