How long does Miso last in the fridge?

Updated 2026-08-07 · Free · No sign-up

Miso keeps about 1 year in the fridge at 40°F (4°C) or below, counting from the day you bought it.

Source: USDA FoodKeeper v128 · Category: Vegetarian proteins

How long Miso keeps

SituationKeeps for
Unopened · fridge1 year
FreezerNot recommended

Only situations with a published figure are listed. A blank isn't “forever” — it means no reliable number is published for it.

Storage

How to tell if Miso has gone bad

These are the general spoilage signs for vegetarian proteins — never taste something to test it. When in doubt, throw it out.

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FAQ

How long does Miso last in the fridge?

About 1 year at 40°F (4°C) or below, according to USDA FoodKeeper v128. That window runs from the day you bought it — FoodKeeper publishes no separate after-opening figure for this one.

Does Miso need to be refrigerated?

Yes — keep Miso at 40°F (4°C) or below. Refrigerate at 40°F (4°C) or below.

How can you tell if Miso is bad?

Look for: Sour or off smell; A slimy or sticky surface; Mould or discoloration; Cloudy or fizzing packing liquid. Never taste something to test it — when in doubt, throw it out.

Can you freeze Miso?

USDA FoodKeeper v128 does not recommend freezing Miso — it survives but the texture or quality suffers badly.

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