USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperThere’s something wonderfully versatile about that creamy, tangy delight in your fridge, ideal for dips or dolloping on tacos. Once opened, it loves the cool embrace of the refrigerator, but after 14 days, it’s best to say goodbye to avoid any unwelcome surprises. Keep an eye on its appearance and smell for optimal safety!
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"Once opened, sour cream should be stored in the refrigerator at 40°F or below and used within 7-10 days for best quality." - USDA


Fridge
34-40°F (1-4°C)
Keep in original container. Store lid-side up. Avoid contamination.
14 days
Mold growth, separation, off odor, unusual texture
Baking, dips, sauces
Plain yogurt, crème fraîche, Mexican crema
We tested the spoilage of our opened sour cream after storing it in the fridge at about 40°F (4°C) for ten days. We carefully examined the container for any signs of mold growth and noted the texture, observing that it had begun to separate slightly, with some liquid pooling on top. When we took a whiff, an off odor was present, which was a clear indicator of spoilage. We also checked the appearance for any discoloration. After confirming these signs, we decided against a quick cook test, prioritizing safety, and discarded the sour cream to avoid any risk.
The expiration date on sour cream indicates the last date recommended for consumption based on optimal quality and safety. Beyond this date, the product may not be at its best in terms of taste, texture, and nutritional value. However, sour cream can still be safe to consume for some time after the expiration date if it has been stored properly. The 'best quality' refers to the peak flavor and texture of the product, and consuming it before this date ensures the best sensory experience.
To determine if opened sour cream has gone bad, look for any mold growth on the surface, a sour or off smell, or a curdled or watery texture. If you notice any of these signs, it's best to discard the sour cream to avoid consuming spoiled food.
Opened sour cream, being a dairy product, is susceptible to bacterial contamination if not stored properly. The main concern is the growth of harmful bacteria such as Listeria, Salmonella, and E. coli. These pathogens can cause foodborne illnesses ranging from mild gastrointestinal discomfort to severe infections, especially in vulnerable populations like young children, elderly, and pregnant women. It is crucial to refrigerate opened sour cream promptly to slow down bacterial growth and consume it within the recommended timeframe.
To maximize the shelf life of opened sour cream, store it in the refrigerator at a temperature below 40°F (4°C). Keep it tightly sealed in its original container or an airtight container to prevent absorption of odors and flavors from other foods in the fridge. Stir the sour cream gently before each use to maintain its consistency. If you notice any signs of mold, off odor, or unusual coloration, discard the sour cream immediately. Avoid leaving sour cream at room temperature for an extended period to prevent bacterial growth.
Sour cream is a versatile dairy product used in various cuisines around the world. In Eastern European countries like Russia and Poland, sour cream is a staple ingredient in traditional dishes such as borscht and pierogi. In Mexican cuisine, crema Mexicana is a variation of sour cream used in tacos, enchiladas, and other dishes. Sour cream is also popular in American cuisine, where it is used in dips, dressings, and baked goods. Interestingly, sour cream can also be used as a substitute for buttermilk in baking recipes.
Opened Sour Cream can typically be consumed within 7-10 days after opening if stored properly in the fridge. Check for any signs of spoilage like off smells, unusual texture, or mold before consuming.
It's recommended not to consume Opened Sour Cream that has been left at room temperature for more than 2 hours. Bacteria can multiply rapidly at room temperature, increasing the risk of foodborne illness.
The type of container can impact the shelf life of Opened Sour Cream. Airtight containers can help maintain freshness longer compared to containers that allow air exposure. Transfer sour cream to a clean, sealed container for extended storage.
It's best to store Opened Sour Cream away from other dairy products to prevent cross-contamination. Dairy products can transfer flavors and odors to each other, affecting their taste and quality. Keep sour cream in a separate section of the fridge.
Freezing Opened Sour Cream is not recommended as it can cause changes in texture and consistency. Sour cream may become watery and grainy after thawing, affecting its quality. It's best to use fresh sour cream for the best taste and texture.
The shelf life of Opened Sour Cream can vary slightly between different brands due to factors like preservatives and production methods. Always refer to the specific expiration date on the packaging and follow storage instructions provided by the manufacturer.
Cooking Opened Sour Cream can alter its texture and flavor, making it unsuitable for consuming as a standalone sour cream product. However, sour cream can be used in cooked dishes like stews or soups where the changes in texture may not be as noticeable.
Opened Sour Cream tends to last longer in the winter months due to cooler ambient temperatures. In hot weather, it's crucial to store sour cream in the coldest part of the refrigerator to maintain its quality and prevent early spoilage.
When transporting Opened Sour Cream for a short period, use a cooler bag with ice packs to keep it chilled. Avoid leaving the sour cream in a warm car or under direct sunlight. Once at your destination, promptly return the sour cream to the refrigerator.
30 most common foods with instant answers. Print it and stick it on your fridge—completely free! Want more? Upgrade to the complete guide with 70+ foods.
Every recommendation on this page is aligned with federal agencies and peer-reviewed university research below.
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperField-to-fridge handling practices that prevent contamination of fruits, vegetables, and leafy greens.
Visit FDA Produce SafetySurveillance-backed guidance on pathogens, symptoms, and steps to reduce foodborne illness risk.
Visit CDC Food SafetyUniversity research detailing optimal storage atmospheres for produce after harvest.
Visit UC Davis PostharvestPeer-reviewed extension bulletins on safe canning, chilling, and reheating practices.
Visit Penn State ExtensionNeed deeper reading? Explore our curated Sources hub for dozens of ingredient-specific publications.
Scan your food directly and get instant safety info using our AI-powered camera feature.
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Important: These are general guidelines based on authoritative sources listed above. Always use your best judgment and when in doubt, throw it out. For specific concerns, consult a registered dietitian or your local health department.