The finely-ground dark roasted beans used for brewing espresso are essential for creating the rich, concentrated beverage. These grounds, considerably finer than those used for drip coffee, allow for optimal extraction under high pressure, resulting in a thick, syrupy consistency and the characteristic crema.
The quality and freshness of these beans directly influence the final product’s flavor profile, aroma, and body. Historically, the development of specialized grinders coincided with advancements in espresso machine technology, highlighting their interconnectedness in achieving the perfect cup. Proper grind size and freshness are crucial for avoiding over-extraction (bitter taste) or under-extraction (sour, weak coffee).
