How long does soy milk last?
Short answer: Soy milk keeps until the use-by date (7–10 days once opened) in the fridge.
Storage chart
| Fridge |
|---|
| Until the package use-by date; 7–10 days (after opening) |
Fridge at 40°F (4°C) or colder, freezer at 0°F (−18°C). Freezer times are for best quality; food kept frozen stays safe indefinitely.
Storage tips
- Keep refrigerated.
Keep it longer
Keep dairy on a shelf, not in the door, where the temperature swings every time the fridge opens.
Common questions
How long does soy milk last in the fridge?
Until the package use-by date (7–10 days once opened) in the refrigerator at 40°F (4°C) or below, according to USDA FoodKeeper data.
How can I tell if soy milk has gone bad?
Throw it out if you see mold, a slimy texture, an off smell or an odd color. For anything perishable, go by the storage time rather than smell: bacteria that cause food poisoning don't usually change how food looks or smells.
More dairy products & eggs
Source: USDA FoodKeeper data (USDA Food Safety and Inspection Service). Updated 2026-10-13. General information, not medical advice. When in doubt, throw it out.