Dairy Products & Eggs
How long does soy milk last after opening?
Refrigerated soy milk holds to the package use-by date sealed, then 7–10 days once opened — the printed date stops meaning much the moment you open it.
How long does it keep?
| Fridge | Package use-by date |
|---|---|
| Fridge, opened | 7–10 days |
- Fridge: Keep refrigerated.
Can you freeze soy milk? FREEZES, BUT… →
Can it sit out?
Soy milk is perishable — the FSIS 2-hour rule applies.
Perishable food left at room temperature for more than 2 hours should be thrown out — 1 hour if it’s 90°F or hotter (a picnic, a hot car, a summer kitchen).
How to tell if soy milk has gone bad
- A sour, gone-off beany smell
- Curdled flecks that stay put in the glass
- A swollen carton or a puff of pressure on opening
When in doubt, throw it out.
Fresh soy milk curdles in hot coffee too — that’s acid and heat, not spoilage; smell the carton before you blame it.
Quick answers
How long does soy milk last after opening?
Refrigerated soy milk holds to the package use-by date sealed, then 7–10 days once opened — the printed date stops meaning much the moment you open it.
Can you freeze soy milk?
Soy milk survives the freezer safely but thaws flecked and faintly curdled — blend it hard, and send it to the stove rather than the cereal bowl.
How long can soy milk sit out?
The FSIS 2-hour rule applies to soy milk. Perishable food left at room temperature for more than 2 hours should be thrown out — 1 hour if it’s 90°F or hotter (a picnic, a hot car, a summer kitchen).