How long does Re-hydrated textured soy protein (TSP) last in the fridge?
About 3–4 days 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 Re-hydrated textured soy protein (TSP) need to be refrigerated?
Re-hydrated textured soy protein (TSP) is shelf-stable at room temperature: cool, dry pantry, or refrigerate at 40°F (4°C) or below to keep it longer. Refrigerating it mainly preserves quality rather than safety.
How can you tell if Re-hydrated textured soy protein (TSP) 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.