How long does an unopened package of sour cream last? The exact answer depends to a large extent on storage conditions — to maximize the shelf life of sour cream, keep it refrigerated at all times.
How long does unopened sour cream last after the sell-by date? Sour cream will generally keep for one to two weeks after the "sell-by" date on the package, assuming it has been continuously refrigerated; be sure that the temperature of your refrigerator remains at or below 40° Fahrenheit at all times.
How long does sour cream last at room temperature? If kept at temperatures above 40 °F, sour cream will rapidly develop signs of spoilage; sour cream should be discarded if left for more than 2 hours at room temperature.
Can you freeze sour cream? Freezing is not recommended, as the texture of sour cream once thawed will be watery and clumpy.
How can you tell if sour cream is bad or spoiled? The best way is to smell and look at the sour cream: discard any sour cream with an off smell or appearance or if mold appears; do not taste the sour cream first.
Sources: For details about data sources used for food storage information, please