Terumi Morita
Sauce and emulsion

Sauce reduction as concentration

JA: 煮詰めという濃縮(につめというのうしゅく)

Sauce reduction is the process of simmering a liquid to concentrate its flavors and thicken its consistency.

What it means in a kitchen

In a working kitchen, sauce reduction involves simmering a liquid, such as stock or wine, over medium heat until it reduces in volume, typically by half. This process can take anywhere from 15 to 30 minutes depending on the liquid and desired concentration.

Common misunderstanding

Beginners often mistake reduction for simply boiling a liquid without monitoring the temperature, which can lead to undesirable flavors or burning.

Example

To create a red wine reduction sauce, simmer 1 cup of red wine in a saucepan over medium heat until it reduces to about 1/4 cup.