What is "yeast extract"?

Yeast extract is a concentrated paste or powder made from the cells of yeast, typically Saccharomyces cerevisiae, which is commonly used in food production. It is produced by breaking down the cell walls of yeast cells to release their contents, including proteins, vitamins, minerals, and flavor compounds. Yeast extract has a savory and umami-rich flavor profile, often described as meaty or brothy. It is used as a flavor enhancer and ingredient in a variety of food products, including soups, sauces, dressings, and savory snacks.