How long will finished yogurt, buttermilk or sour cream last in the refrigerator?
In the refrigerator (40° to 45°F):
- 7 days to maintain re-culturing viability
- 2 weeks for edibility
If I drain whey from my yogurt, how long can I store the whey in the refrigerator?
Whey will generally last about 6 months in the refrigerator. Always check the appearance and aroma. If it looks or smells bad, discard it.