Devices designed specifically for grinding coffee beans to the fine consistency required for espresso preparation employ burrs, rather than blades, to create uniform particle sizes. This precision is crucial for extracting a balanced and flavorful shot. For example, conical burr grinders, known for their consistent grind and minimal heat generation, are a popular choice for espresso.
Properly sized grounds are essential for optimal espresso extraction. Inconsistent particle sizes lead to uneven brewing, resulting in a sour or bitter taste. The historical development of these specialized grinders reflects the increasing demand for high-quality espresso, moving from less precise blade grinders to the advanced burr grinders available today, enabling consistent, professional-grade results at home.
