Vegetarian proteins: how long does it last?

5 vegetarian proteins items with published storage times, 1 of them with a specific after-opening window.

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

ItemAfter openingUnopened / otherStore at
Miso1 yearRefrigerate at 40°F (4°C) or below
Re-hydrated textured soy protein (TSP)3–4 daysCool, dry pantry, or refrigerate at 40°F (4°C) or below to keep it longer
Soy flour (full-fat)6 monthsCool, dry pantry, or refrigerate at 40°F (4°C) or below to keep it longer
Textured soy protein (TSP)3–4 months2 yearsCool, dry pantry, sealed — refrigerating after opening is optional and mainly preserves quality
Tofu1 weekRefrigerate at 40°F (4°C) or below

Tap any item for its full storage table, spoilage signs, and storage tips. A dash means no figure is published for that situation — not that it keeps forever.

Spotting spoilage in vegetarian proteins

General guidance for the category, not a per-product finding. When in doubt, throw it out.

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