Yes — you can freeze mashed potato.
How to freeze mashed potato
- Cool the mash completely after making it.
- Spoon into airtight containers, or pipe/scoop portions onto a tray to open-freeze, then bag up.
- Label and freeze. Mash made with butter and a little cream or milk freezes best.
How long it keeps
Keep frozen mashed potato for up to 1 month for best quality.
How to defrost
Defrost overnight in the fridge, or reheat gently from frozen.
How to reheat
Reheat in a pan over a low heat or in the microwave, beating in a splash of milk or a knob of butter to bring it back to smooth and piping hot.
When not to freeze it
- Very low-fat mash (made with just water or skimmed milk) can turn watery or grainy when frozen — add some butter for a better result.
Food safety: Cool the mash and freeze it promptly rather than leaving it sitting out. Reheat until piping hot all the way through.