What does the term "espresso" refer to?

The term "espresso" specifically refers to a method of brewing coffee that produces a concentrated shot of coffee by forcing hot water through finely-ground coffee under high pressure. This unique process creates a rich and intense flavor profile, distinguished by its boldness and a crema layer on top, which is a creamy froth that develops during brewing. The fineness of the coffee grounds is crucial, as it impacts the extraction of flavors and oils, resulting in the robust taste that espresso is known for.

Understanding this definition helps clarify why the other options do not accurately describe what espresso is. For instance, a light roast coffee blend refers to the roast level rather than the brewing method. Similarly, brewing coffee multiple times does not align with the specific characteristics of espresso brewing, nor does it involve the pressing technique that defines espresso. Lastly, while many espresso-based drinks incorporate milk, such as lattes and cappuccinos, espresso itself is not categorized as a milk-based coffee but rather as the concentrated coffee shot that can serve as a base for these beverages.