Can you freeze mashed potatoes?

What freezing does to mashed potatoes

Freezing causes the water in potatoes to form ice crystals that rupture the starch structure, leading to a loss of creaminess. When thawed, the potatoes tend to separate and become grainy or gluey, so they require vigorous re-whipping to recover some texture.

How to freeze it

1. Cool the mashed potatoes completely in the refrigerator.
2. Portion the potatoes into airtight containers or heavy-duty freezer bags, removing as much air as possible.
3. Label with the date and freeze immediately.
4. To use, thaw overnight in the refrigerator.
5. Reheat in a saucepan over low heat, adding milk or butter while whisking vigorously to restore creaminess.

Thawing and using it

The texture will be grainy and potentially watery; thaw in the refrigerator overnight and reheat on the stove while whisking in fresh butter or cream to improve consistency.

Depends on the form

• Potatoes with high water content like Russets freeze better than waxy varieties
• Mashed potatoes with dairy added before freezing separate more easily than those frozen plain
• Leftovers that have been sitting out for a long time before freezing may have quality issues