How long do kefir and liquid egg last?
Kefir and liquid egg keep 1 week in the fridge and freezing isn't recommended, according to USDA FoodKeeper.
Quick answer
This food spoils quickly and can make you sick if kept too long. If you’re unsure how long it’s been, go with the shorter time, and when in doubt, throw it out.
Storage times by type
| Type | Fridge | Freezer | Pantry |
|---|---|---|---|
| Kefir (fermented milk) |
|
| — |
| Egg substitutes (liquid) |
|
| — |
Also covers: kefir, liquid egg, egg substitute, egg beaters.
Never wonder “is this still good?” again
Shelf Shepherd keeps track of what’s in your fridge and pantry and reminds you before food expires. Free for iPhone and Android.
Get early accessThese are general guidelines from the USDA’s FoodKeeper data for food stored at safe temperatures: fridge at 40°F (4°C) or below, freezer at 0°F (−18°C). Freezer times are for best quality; food kept constantly frozen at 0°F stays safe longer. Always check the package and the food itself. When in doubt, throw it out. Shelf Shepherd isn’t affiliated with or endorsed by the USDA.
Source: USDA FSIS FoodKeeper data. Last reviewed November 5, 2026.