Whole raw potatoes keep 2–3 months in a cool, dark, ventilated place, or 1–2 weeks at normal room temperature. Cooked potatoes last 3–4 days in the fridge.
Fridge
Not for raw potatoes · 3–4 days cooked
Freezer
10–12 months once cooked or blanched
Counter / pantry
1–2 weeks warm · 2–3 months cool and dark
Store it right
Keep in a paper or mesh bag, never sealed plastic.
Store away from onions — together they spoil faster.
Do not refrigerate raw: cold converts starch to sugar and darkens frying.
Signs it has gone off
Green skin or sprouts (cut away generously)
Soft, wrinkled or leaking tubers
Musty smell
Rescue ideas
Slightly soft potatoes are still fine mashed or in soup.
Batch-cook and freeze rösti, chips or mash.
Use peelings for crisps baked with olive oil and salt.