How Long Do Sweet Potatoes Last?
Raw sweet potatoes last 2–3 weeks in a pantry at normal room temperature, and longer somewhere cool and dark. Do not refrigerate them raw. Cooked sweet potatoes last 3–4 days in the fridge.
Sweet Potatoes — raw
shelf life- Cut: 1 day in the fridge
- Cooked: 3–4 days in the fridge
Fridge at 40°F (4°C) or below · freezer at 0°F (−18°C). Freezer times are for best quality; frozen food stays safe longer.
Sweet potatoes are tropical storage roots, unrelated to regular potatoes, and the orange ones are often labeled yams in US stores. Their thin skin is easily damaged, and they are more sensitive to cold than potatoes: raw roots held in the fridge develop a hard core and an off taste. They keep best somewhere cool but not cold.
How to store sweet potatoes
- Keep raw sweet potatoes loose in a basket or paper bag in a dark, ventilated cupboard away from the stove. Avoid sealed plastic, which holds moisture against the skin.
- Handle them gently and do not wash before storing. The skin scuffs easily, and wet, damaged skin is where mold and soft rot begin.
- Skip the refrigerator for raw roots. Cold causes a hard, woody center that stays hard even after long cooking.
- Sweet potatoes must be cooked before freezing. Bake or boil until just tender, cool, then freeze whole in foil, sliced or mashed with a little lemon juice to hold the color.
How to tell if sweet potatoes have gone bad
- Soft, mushy or wet spots, often at the pointed ends first, sometimes oozing liquid.
- Wrinkled, shriveled skin over flesh that has turned spongy.
- Dark brown or black patches running deep into the flesh when cut, rather than a small surface blemish.
- White, green or black mold on the skin, or a musty, sour smell.
Bacteria that cause food poisoning usually do not change the look, smell or taste of food. Go by the time limits first, and the signs above second.
Sweet Potatoes shelf life chart
| State | Fridge | Freezer | Pantry |
|---|---|---|---|
| Raw | Not recommended | Not recommended | 2–3 weeks |
| Up to 1–2 months in a dark, ventilated spot at 55–60°F (13–16°C). | |||
| Cut | 1 day | Not recommended | Not safe |
| Peeled or cut raw, held under cold water in the fridge. | |||
| Cooked | 3–4 days | 8–12 months | Not safe |
| Baked whole, sliced or mashed. Casseroles with dairy or marshmallows: 2–3 months frozen. | |||
Not safe = perishable: no more than 2 hours at room temperature (1 hour above 90°F / 32°C). Not recommended = possible, but quality suffers or it serves no purpose.
Frequently asked questions
What is the white liquid that oozes out when I cut a sweet potato?
The white, milky liquid is a harmless mix of starch and sugar in the root's sap, and it is actually a sign of a fresh, sweet potato. It can dry into white spots on the cut face. It is not mold, pesticide or spoilage, and it cooks away.
Can you eat a sweet potato that has sprouted?
Yes. Unlike regular potatoes, sweet potatoes do not produce solanine, and their sprouts and leaves are not toxic. Snap the sprouts off and cook the root as usual, provided it is still firm. If it has become shriveled, soft or moldy along with sprouting, discard it.
How long do baked sweet potatoes last in the fridge?
Baked sweet potatoes last 3–4 days in the fridge. Let them cool, then store them unwrapped from any foil in a covered container, and refrigerate within 2 hours of cooking. They reheat well in the microwave or oven, which makes them a good option for weekly meal prep.
Why does my sweet potato have holes or dark pits inside?
Small holes or spongy channels inside usually mean the root dried out or was stored for a long time, a condition growers call pithiness. It is safe but dry and less sweet, so trim those sections. Dark, wet, foul-smelling areas are rot, and that potato should be thrown away.
Related foods
| Food | Fridge | Freezer | Pantry |
|---|---|---|---|
| Potatoes Raw |
Not recommended | Not recommended | 1–2 months |
| Butternut Squash Whole |
Not recommended | Not recommended | 1–2 months |
| Pumpkin Whole |
Not recommended | Not recommended | 1–2 months |
| Carrots Whole |
3–4 weeks | 8–12 months | Not recommended |
| Mashed Potatoes Cooked |
3–4 days | 1–2 months | Not safe |
| Beets Raw |
2 weeks | Not recommended | Not recommended |
More roots & tubers: Ginger, Radishes.
Reviewed 2026-09-20. Times follow published USDA FoodKeeper / FSIS, FDA and CDC storage guidance; where sources differ we use the shorter time. How we compile this data.