How can you tell if Idli (cooked) has gone bad?

Signs that Idli (cooked) has gone bad: Sour smell beyond the normal mild fermentation; Sticky, slimy surface or visible mold; Hardened, cracked, or discoloured patches.

What does the date label on Idli (cooked) mean?

Idli (cooked) usually doesn't carry a printed date label — judge by storage time and the spoilage signs above.

Leftovers

How long does Idli (cooked) last?

Q: How long does Idli (cooked) last?

In the fridge: 1–2 days. In the freezer: 1 month. Sealed / unopened: N/A. Best eaten fresh. Refrigerate in an airtight box so they don't dry out, and re-steam to soften. Idlis freeze well — steam or microwave from frozen.

Medium confidence Safety concern

How long does Idli (cooked) last? fridge 1–2 days, freezer 1 month. Plus spoilage signs, sources, and an unopened-vs-opened note.

Fridge

1–2 days

Pantry

Refrigerate only

Freezer

1 month

Sealed / unopened: N/A

Signs Idli (cooked) has gone bad

Sour smell beyond the normal mild fermentation.
Sticky, slimy surface or visible mold.
Hardened, cracked, or discoloured patches.

Discard immediately if

Past 2 days in the fridge
Any sour-off smell or sliminess
Visible mold

Why guidance varies

Steamed fermented rice-and-lentil cakes are high-moisture and quickly dry out or sour; how fresh the batter was and fridge temperature decide their short window.

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Sources for this answer

A USDA FSIS — Leftovers and Food Safety — Cooked, high-moisture foods keep a few days refrigerated.
A BC-CDC — Dosa and Idli Guideline — Cooked idli/dosa should be refrigerated and reheated to 74°C before eating.

Reviewed: 2026-05 · Rule: if manufacturer storage instructions are stricter than category guidance, the manufacturer instructions win.