How long does miso last?
Short answer: Miso keeps 1 year in the fridge and doesn't freeze well.
Storage chart
| Fridge | Freezer |
|---|---|
| 1 year | Not recommended |
Fridge at 40°F (4°C) or colder, freezer at 0°F (−18°C). Freezer times are for best quality; food kept frozen stays safe indefinitely.
Keep it longer
Keep the fridge at 40°F (4°C) or colder and the freezer at 0°F (−18°C). Write the date on containers when you open or cook something.
Common questions
How long does miso last in the fridge?
1 year in the refrigerator at 40°F (4°C) or below, according to USDA FoodKeeper data.
Can you freeze miso?
Freezing isn't recommended for miso; the texture and quality suffer.
How can I tell if miso has gone bad?
Throw it out if you see mold, a slimy texture, an off smell or an odd color. For anything perishable, go by the storage time rather than smell: bacteria that cause food poisoning don't usually change how food looks or smells.
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Source: USDA FoodKeeper data (USDA Food Safety and Inspection Service). Updated 2026-10-13. General information, not medical advice. When in doubt, throw it out.