What is "single shot" espresso?

A "single shot" espresso is defined as a 1-ounce shot brewed using approximately 7-9 grams of finely ground coffee. This measurement is essential to achieving the proper extraction, which contributes to the espresso's rich flavor and crema. The 1-ounce volume is standard for a single shot, providing a concentrated and intense coffee experience. The use of 7-9 grams of coffee allows for the optimal balance of flavor, body, and aroma, leveraging the coffee's oils and soluble compounds during the brewing process.

Understanding this definition is crucial for any coffee enthusiast or barista, as it lays the foundation for what constitutes a proper espresso shot. The specifics of the amount of coffee used and the volume of water are critical in ensuring consistency and quality in every espresso preparation.