FOOD STORAGE — HOW LONG CAN YOU KEEP...

• Keep opened sour cream refrigerated and tightly covered at all times.
• Can you freeze sour cream? Sour cream does not freeze well; the texture once thawed will be watery and clumpy.
• How long does sour cream last at room temperature? Bacteria grow rapidly at temperatures between 40 °F and 140 °F; sour cream should be discarded if left for more than 2 hours at room temperature.
• How can you tell if sour cream is bad? 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 click here.