How Long Does Kimchi Last?
Opened kimchi lasts 3–6 months in the fridge if the vegetables stay submerged in brine, getting more sour as it ages. At room temperature it over-ferments within days, so store it cold.
Kimchi — opened
shelf life- Homemade: 1–3 months 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.
Kimchi is salted napa cabbage and radish fermented with chili, garlic, ginger and often fish sauce or salted shrimp. Lactic acid bacteria turn the vegetables' sugars into acid, and that acidity together with the salt is what preserves it. Kimchi is alive and keeps fermenting in the fridge, growing steadily more sour and softer over time.
How to store kimchi
- After each serving, press the vegetables down with a clean spoon until the brine covers them. Kimchi exposed to air above the liquid is where mold and yeast take hold.
- Always use clean chopsticks or a clean fork, never fingers or a utensil that has touched other food. Introduced bacteria are what spoil a jar early.
- Open a new jar over the sink and do not fill jars to the brim. Fermentation gas builds up, and a bulging lid or fizzing overflow on a refrigerated jar is normal, not a sign of spoilage.
- Keep it in a tightly sealed glass jar at the back of the fridge, where it is coldest. Colder storage slows the souring, and glass holds in the smell better than plastic.
- Cook with kimchi that has become too sour to enjoy raw: old kimchi is what is traditionally used for stew, fried rice and pancakes.
How to tell if kimchi has gone bad
- Fuzzy mold on the surface in blue, green, black or white. A raised fuzzy growth is different from the flat white film of harmless yeast, but if you cannot tell them apart, discard the jar.
- A smell that is rotten, like alcohol or nail polish, instead of sharply sour, garlicky and pungent.
- Vegetables that have turned slimy or mushy throughout, not just softened.
- An unpleasant bitter or chemical taste. Fizziness and strong sourness are normal.
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.
Kimchi shelf life chart
| State | Fridge | Freezer | Pantry |
|---|---|---|---|
| Opened | 3–6 months | Not recommended | Not recommended |
| Store-bought refrigerated kimchi. It stays safe while submerged and mold-free, but turns very sour and soft. | |||
| Homemade | 1–3 months | Not recommended | Not recommended |
| After its initial 1–5 day ferment at room temperature. Salt levels vary at home, so be more cautious. | |||
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
Does kimchi go bad?
Yes, eventually, although it lasts far longer than most refrigerated foods. Opened kimchi keeps 3–6 months in the fridge. Over that time it becomes progressively more sour and softer, which is aging, not spoilage. It has gone bad when it grows mold, turns slimy, or smells rotten or of alcohol.
Is fizzy or bubbling kimchi safe to eat?
Yes. Fizz, bubbles and a lid that pops are signs of active fermentation: the lactic acid bacteria release carbon dioxide as they work. This is normal in unpasteurized kimchi and is most noticeable in younger jars. It tells you the kimchi is alive, not that it has spoiled.
Does kimchi need to be refrigerated?
Yes, for storage. Kimchi is fermented at room temperature for only a few days when it is made, then moved to the cold to slow the process. A jar left on the counter keeps fermenting quickly and becomes unpleasantly sour and soft within about a week, and the risk of surface mold rises.
Can you eat kimchi past the expiration date?
Often, yes. The date on refrigerated kimchi is a best-by date chosen for flavor, and properly stored kimchi commonly remains safe for some time afterward because of its acidity and salt. Inspect it for mold, sliminess or a rotten smell, and expect it to be more sour. Very old kimchi is best cooked.
Can you freeze kimchi?
Freezing is not recommended for kimchi you plan to eat as a side dish. It is safe, but ice crystals destroy the crunch, leaving the cabbage limp, and reduce the live cultures. Since kimchi already keeps for months refrigerated, freezing is only worthwhile for portions destined for stews and fried rice.
Related foods
| Food | Fridge | Freezer | Pantry |
|---|---|---|---|
| Sauerkraut Opened, refrigerated |
4–6 months | Not recommended | Not safe |
| Cabbage Whole |
1–2 weeks | 8–12 months | Not recommended |
| Pickles Opened |
1–3 months | Not recommended | Not recommended |
| Miso Paste Opened |
1 year | 1 year | Not recommended |
| Fish Sauce Opened |
2–3 years | Not recommended | 1 year |
| Fried Rice Cooked |
3–4 days | 1–2 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.