USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperStorage temperature, how long it has been opened, and package integrity change the answer — and those details are easy to miss.
Get a yes / no answer for your un sour cream →
Check Your Exact Situation

Last reviewed: January 2026
Reviewed by the Can I Eat Expired Editorial Team using official USDA, FDA, and CDC food safety guidance. How we assess food safety risk
This food is often safe when handled and stored properly, but safety depends on how it's been kept and whether any spoilage signs are present.
⏱️ Safe for up to 7 days after expiry if properly stored and showing no spoilage signs.
⚠️ Eating spoiled dairy is one of the most common causes of food poisoning at home.
Fridge
34-40°F (1-4°C)
Keep refrigerated in original container. Check expiration date.
Dairy products require consistent cold storage (40°F or below) to prevent spoilage. A refrigerator thermometer (Amazon) helps ensure your refrigerator maintains safe temperatures.
21 days
Package damage, unusual odor when opened, separation
Transferring opened dairy into an airtight container (Amazon) can reduce odor absorption and moisture exposure.
Baking, cooking, dips
Plain yogurt, crème fraîche, Mexican crema
The expiration date on sour cream indicates the date until which the product is expected to remain at its peak quality. Beyond this date, the sour cream may start to lose its freshness, flavor, and texture. However, sour cream can still be safe to consume for some time after the expiration date if it has been stored properly and shows no signs of spoilage. It is always recommended to use your senses of sight, smell, and taste to determine if the sour cream is still good to eat.
To check if unopened sour cream has gone bad, look for any signs of mold, discoloration, or separation of liquids. Give it a sniff for any sour or off-putting odor. Lastly, check the texture - if it appears curdled or lumpy, it's best to discard it.
Unopened sour cream is generally safe to consume past its expiration date if stored properly, but it is important to check for signs of spoilage such as off odor, mold growth, or unusual texture. Consuming spoiled sour cream can lead to foodborne illnesses such as stomach upset, diarrhea, and vomiting. People with weakened immune systems, pregnant women, and the elderly should be especially cautious.
To maximize the shelf life of unopened sour cream, it is important to store it in the refrigerator at a temperature of 40°F (4°C) or below. Keep the sour cream container tightly sealed to prevent air and moisture from entering, which can promote spoilage. Store the sour cream away from foods with strong odors as it can easily absorb them. If you won't be using the entire container at once, consider portioning it out into smaller airtight containers to minimize air exposure when opening and closing the container.
Sour cream is a popular dairy product in many cultures and cuisines around the world. It is commonly used as a topping for baked potatoes, tacos, and soups, adding a creamy and tangy flavor. In Eastern European cuisines, sour cream is a staple ingredient in dishes like borscht and stroganoff. In Mexican cuisine, crema, a variation of sour cream, is widely used in dishes like tacos and enchiladas.
Unopened Sour Cream is generally safe to consume up to 7 days after the expiration date if it has been continuously refrigerated. However, always check for any signs of spoilage such as off odors, unusual textures, or mold before consuming.
It is not recommended to consume Unopened Sour Cream that has been stored at room temperature, as dairy products like sour cream are perishable and can spoil quickly when exposed to higher temperatures. Always store sour cream in the fridge to maintain its quality and safety.
The type of container can impact the shelf life of Unopened Sour Cream. Airtight containers can help maintain freshness and prevent contamination better than containers with loose lids. Always choose containers designed for dairy storage to ensure the best quality and safety of your sour cream.
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 ExtensionImportant: These are general guidelines based on authoritative sources listed above. Always use your best judgment and when in doubt, throw it out.
Disclosure: As an Amazon Associate, we earn from qualifying purchases. This helps support our site and allows us to continue providing free food safety information.