What is the modern recipe for a single shot of espresso?

The modern recipe for a single shot of espresso highlights the recommended dosage of coffee grounds and the corresponding amount of water used in the brewing process. A typical single shot involves using 7-10 grams of finely ground coffee, which allows for an optimal extraction of flavor. This amount is balanced with approximately 25-30 milliliters of water, facilitating the brewing conditions needed to achieve a rich crema and complex flavor profile that espresso is known for.

This preparation ensures that the coffee's essential oils and soluble compounds are effectively extracted during the brewing process, which generally lasts about 25-30 seconds. The water volume of 25-30 milliliters allows for a concentrated yet balanced shot, capturing the intensity and richness of the coffee beans.

The other options might suggest slightly varied measurements, but they do not align with the established standards for espresso preparation, where the goal is to strike just the right balance between coffee and water for an ideal, well-rounded extraction.