Expiration & Storage Tips
When does sour cream expire?
Unopened, a tub of sour cream should last about two weeks past the 'sell by' or 'best before' date printed on the packaging. Once opened, sour cream should be used within 7 to 10 days for the best quality, although it may look and taste fine for up to three weeks if stored properly in the fridge. If frozen, sour cream can last up to six months, but be advised that the texture may change as it thaws, making it suitable only for cooked dishes.
How do you tell if sour cream is bad?
There are several indications that your sour cream has turned bad. First, give it a good sniff. If it smells off or somewhat like a yeast, it’s likely spoiled. Secondly, check for any visible discoloration or mold. If there is any mold or green or yellow spots on the surface, it's best to throw away the entire container. A change in texture, like becoming unusually watery, clumpy, or lumpy, is another bad sign. Finally, if it tastes even slightly sourer than usual, it's time to discard it.
Tips for storing sour cream to extend shelf life
• Always store sour cream in the refrigerator, ideally at temperatures between 35-40°F.
• Keep the sour cream in its original container, sealed tight.
• Use a clean spoon every time to prevent introducing bacteria into the tub.
• Don't let sour cream sit out longer than two hours at room temperature to prevent bacterial growth.
• If you want to freeze sour cream, consider storing it in small, portion-sized containers to make thawing easier. Thaw frozen sour cream in the fridge for a day before use.
• After freezing, the texture of sour cream might change to watery so it is best used in cooked dishes like casseroles or soups, not as a topping or in dips.