How Long Do Leeks Last?
Whole leeks last 1–2 weeks in the fridge. Sliced or washed leeks last 2–3 days, cooked leeks keep 3–4 days, and sliced leeks freeze for 3–6 months.
Leeks — whole
shelf life- Cut: 2–3 days 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.
Leeks are mild members of the onion family, grown with soil mounded around the stalk to keep the base white and tender. That same soil ends up trapped between their tightly wrapped layers. They store like a leafy vegetable, not like a cured onion, and their smell spreads easily to other food in the fridge.
How to store leeks
- Store leeks unwashed and untrimmed, with roots and dark tops still on, loosely wrapped in a plastic bag in the crisper.
- Wrap them well. Leeks give off an onion odor that soft foods like butter and cheese pick up quickly.
- Wash leeks only when you are ready to cook: slice them first, then swish the pieces in a bowl of water so the grit sinks, and lift them out.
- Save the tough dark green tops in a freezer bag for making stock.
- To freeze, slice, wash and dry thoroughly, freeze on a tray and then bag. Blanching for 1 minute first extends quality for longer storage.
How to tell if leeks have gone bad
- Slimy outer layers or a slippery film on the white shaft. One slimy outer layer can be peeled away if the leek beneath is firm and fresh-smelling.
- Yellowing, wilted or dried-out green tops together with a soft, bendy white base.
- Dark, mushy patches or mold between the layers.
- A sour, rotten smell that is stronger and harsher than the usual mild onion scent.
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.
Leeks shelf life chart
| State | Fridge | Freezer | Pantry |
|---|---|---|---|
| Whole | 1–2 weeks | 3–6 months | Not recommended |
| Untrimmed and unwashed. Slice and wash before freezing. | |||
| Cut | 2–3 days | 3–6 months | Not safe |
| Cooked | 3–4 days | 2–3 months | Not safe |
| Includes potato leek soup; soups made with cream may separate when thawed. | |||
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
Can you eat the dark green part of a leek?
Yes, the dark green tops are edible, just tough and fibrous. They are usually trimmed off and used to flavor stocks and broths, or sliced thin and cooked for a long time. They keep for the same 1–2 weeks attached to the leek, or for months in the freezer for stock.
How long does potato leek soup last in the fridge?
Potato leek soup lasts 3–4 days in the fridge. Cool it quickly in shallow containers and refrigerate within 2 hours. It can be frozen for 2–3 months; versions made with cream or milk tend to turn grainy, so it is better to freeze the soup before adding dairy.
Do leeks need to be refrigerated?
Yes. Leeks are a fresh, uncured vegetable and wilt within a couple of days at room temperature. In the fridge, whole leeks stay good for 1–2 weeks. Once they are sliced or washed, keep them in a sealed container and use them within 2–3 days.
Can you freeze leeks without blanching?
Yes, sliced, washed and well-dried leeks can be frozen raw and used within about 3 months. For storage toward 6 months, blanch the slices for 1 minute first. Frozen leeks go soft, so add them straight from the freezer to soups, quiches and braises.
Related foods
| Food | Fridge | Freezer | Pantry |
|---|---|---|---|
| Onions Whole |
Not recommended | Not recommended | 1–2 months |
| Green Onions Whole |
7–10 days | 3–4 months | Not recommended |
| Garlic Whole |
Not recommended | Not recommended | 3–5 months |
| Celery Whole |
1–2 weeks | 8–12 months | Not recommended |
| Potatoes Raw |
Not recommended | Not recommended | 1–2 months |
| Soup Homemade |
3–4 days | 2–3 months | Not safe |
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.