What sour cream is made of

It is made of cultured cream, grade a whey, modified food starch, sodium phosphate, sodium citrate, guar gum, carrageenan, calcium sulfate, potassium sorbate, and locust bean gum.

Guar gum

How sour cream is made

Sour cream is made by mixing plain cream with different kinds of lactic acid bacteria.

Lactic acid bacteria