What is a single shot of espresso defined as?

A single shot of espresso is defined as using 7-9 grams of coffee to yield approximately 30 milliliters of brewed espresso. This standard measurement ensures that the espresso produced has the right balance of flavor, strength, and crema, which are crucial characteristics of a well-pulled shot. The amount of coffee used is specifically targeted to allow for optimal extraction, where the pressure and temperature interact effectively to draw out the essential oils and flavors from the coffee grounds, resulting in a rich and concentrated beverage.

The volume of about 30 milliliters is a critical aspect of creating an authentic single shot of espresso, as it provides a concentrated shot that encapsulates the signature flavors and crema, making it the foundation for various coffee beverages. Understanding these parameters is crucial for baristas to maintain consistency and quality in espresso preparation.