Description
Sour cream, which has a fat content of around 20 percent, is made by mixing cream with a lactic acid culture; the bacteria thickens and sours it. It may also contain stabilizers, like gelatin or rennin, which aid in the thickening. Sour cream is made when lactic acid-producing bacteria is added to dairy cream, resulting in a slightly tart, thick substance. It has long been an ingredient in Eastern and Central Europe cuisines and moved west as people immigrated to other countries.
