How many grams of coffee are typically used for a double shot of espresso?

A double shot of espresso typically requires between 18 to 20 grams of coffee. This measurement is crucial for achieving the right balance of flavors, strength, and extraction.

Coffee extraction involves dissolving the soluble materials in the coffee grounds, which includes oils, sugars, and acids, to create the rich, flavorful beverage known as espresso. Using the optimal amount of coffee ensures that the water passes through the coffee at the right rate, allowing for the best flavor profile to develop. In this case, 18 to 20 grams is considered ideal for a double shot because it provides the necessary resistance to the water flow, leading to a more concentrated and balanced shot of espresso.

Using less than 18 grams might result in under-extraction, leading to a sour or weak taste, while exceeding 20 grams can lead to over-extraction, resulting in a bitter flavor profile. Therefore, the range of 18 to 20 grams stands out as the technically sound choice for a double shot of espresso.