What are the red spots in sour cream?

The red spots in sour cream are most likely red yeast, also known as Rhodotorula. It's a type of yeast that is naturally present in the environment and can sometimes contaminate food products like sour cream.

Here's why they appear:

* Appearance: Rhodotorula appears as small, pink or reddish spots. The spots are usually small and don't significantly impact the texture or taste of the sour cream.

* Cause: Rhodotorula grows in a variety of conditions, including low temperatures, which are common in refrigerator storage. It's also attracted to fatty foods like sour cream.

* Safety: While it's not harmful to consume, it can indicate that the sour cream is approaching its expiration date and might not be as fresh as it once was.

If you see red spots in your sour cream:

* Don't worry! It's usually safe to eat.

* Check the expiration date: If the sour cream is past its date, it's best to discard it.

* Smell and taste: If the sour cream has an off smell or taste, it's best to throw it away.

If you have any concerns, it's always best to err on the side of caution and throw away the sour cream.