How long food keeps › Vegetarian Proteins

How long does re-hydrated textured soy protein last?

Re-hydrated textured soy protein ((TSP)) keeps 3–4 months in the pantry and 3–4 days in the fridge.

By Cory, founder of Pantry to Pan · Published October 19, 2026 · Updated October 28, 2026

Written with AI help from the sources listed, and published by Cory. Sources: USDA FoodKeeper, USDA on leftovers and food safety, USDA on the danger zone (40-140°F). Spot a mistake? Tell us and we'll fix it.

How long does re-hydrated textured soy protein keep in the pantry, fridge and freezer?

How do you keep re-hydrated textured soy protein safe to eat?

• These times assume the fridge is at 40°F or colder and the freezer at 0°F.
• Freezer times are for best quality. Food kept frozen at 0°F stays safe indefinitely; it just loses flavor and texture over time.
• Perishable food shouldn't sit at room temperature for more than 2 hours (1 hour above 90°F).
• Smell and looks don't tell you about the bacteria that make people sick, so go by the time, not by a sniff test.

How long do other vegetarian proteins keep?

• Tofu
• Miso
• Soy flour
• Textured soy protein

Which cooking guides go with it?

• Food safety: the danger zoneBetween 40°F and 140°F, bacteria multiply fast, so perishable food shouldn't sit there long.
• Storing and reheating leftovers safelyCooling, storing and reheating cooked food so it stays safe and still tastes good.
• Freezing and freezer burn: what ice does to foodFreezing turns food's water into ice, which pauses spoilage but can damage texture and dry out surfaces as freezer burn.
• Thawing food safelyDefrosting frozen food in a way that keeps it out of the temperature range where bacteria grow.
• Storing produce so it lastsKnowing what goes in the fridge, what stays on the counter, and what to keep apart so fruits and vegetables last longer.
• Blanching vegetables for the freezerBriefly boiling vegetables, chilling them in ice water, and freezing them flat so they keep color and flavor for months.