Can you use sour cream that is 4 weeks past the expiration date?

No, you should not use sour cream that is 4 weeks past the expiration date. Sour cream is a dairy product and like other dairy products can spoil quickly. Consuming spoiled sour cream can cause foodborne illnesses such as nausea, vomiting, and diarrhea. It is important to follow the expiration date for sour cream and other dairy products to ensure your safety.