How long does Tamarind Paste / Concentrate (opened) last?
How long does Tamarind Paste / Concentrate (opened) last? fridge 3–6 months, pantry 1–3 months, freezer 9–12 months. Plus spoilage signs, sources, and an unopened-vs-opened note.
Quick answer
Sealed / unopened: 1 year (pantry, unopened, cool and dark)
Signs Tamarind Paste / Concentrate (opened) has gone bad
- Fuzzy white or green surface mold.
- Fermented, yeasty, or beer-like odour.
- Slimy patches or gas bubbles.
Still good if
- Darkening in colour over time with no mold and a normal sour aroma.
- A thin dry crust on top — scrape off if what's below smells clean.
Discard immediately if
- Any mold or fuzzy growth
- Off, rotten, or alcoholic smell
- Diluted paste left at room temperature for long
Why guidance varies
High natural tartaric/citric acidity and (in commercial jars) preservatives make concentrate very stable, but surface mold can still form if it's diluted, contaminated, or stored warm. Homemade pastes spoil faster.
Get a heads-up before it expires. Search the full database instead.
Frequently asked questions
How long does Tamarind Paste / Concentrate (opened) last?
In the fridge: 3–6 months. In the pantry: 1–3 months. In the freezer: 9–12 months. Sealed / unopened: 1 year (pantry, unopened, cool and dark). Store in glass (acid can corrode metal lids) and scoop with a dry spoon. Refrigeration greatly slows darkening and mold versus room temperature. Homemade or diluted paste should stay refrigerated or frozen.
How can you tell if Tamarind Paste / Concentrate (opened) has gone bad?
Signs that Tamarind Paste / Concentrate (opened) has gone bad: Fuzzy white or green surface mold; Fermented, yeasty, or beer-like odour; Slimy patches or gas bubbles. Still good if: Darkening in colour over time with no mold and a normal sour aroma; A thin dry crust on top — scrape off if what's below smells clean.
What does the date label on Tamarind Paste / Concentrate (opened) mean?
Tamarind Paste / Concentrate (opened) usually carries a "Best By" date. A quality marker — the product is at peak quality before this date, but it’s safe to eat afterward if stored correctly. See our date-labels guide for the full breakdown.
Sources for this answer
- B CSIR-CFTRI — Preservation studies of tamarind concentrates and acidulated pastes.
- A USDA FoodKeeper — Acidic condiments keep longer but still need proper storage.