How Long Does Sour Cream Last?
Regular and light sour cream after opening.
The Short Answer
Sour Cream lasts 14–21 days in the refrigerator when stored properly at 40°F or below. These times are based on USDA food safety guidelines and assume proper storage conditions.
Storage Times at a Glance
Source: USDA FoodKeeper | Last verified: March 19, 2026 | Our methodology
A thin layer of liquid on top of sour cream is whey. It is normal. Stir it back in. Thick pools of liquid or any mold mean it is time to toss it.
How to Store Sour Cream
Keep the lid tightly sealed. Always use a clean spoon. Store toward the back of the fridge.
How to Tell if Sour Cream Has Gone Bad
Look for these signs that sour cream has spoiled: mold growth, heavy watery separation, strong sour or off smell, yellow discoloration.
The Professor's rule: When in doubt, throw it out. No meal is worth food poisoning.
The Bottom Line
Properly stored sour cream stays safe for 14–21 days in the fridge. Always store in airtight containers, refrigerate within 2 hours of purchase or preparation, and trust your senses. If something looks, smells, or feels off, discard it regardless of how many days it has been.
Frequently Asked Questions
If it has been continuously refrigerated and shows no signs of spoilage, sour cream is often safe for 1-2 weeks past the date. Trust your senses.