Grind size

What is the grind?

The Grinding degreeWhat is the grind? The grind refers to the size of the ground coffee particles that result from a coffee grinder. The grind is... refers to the size of the ground coffee particles resulting from a coffee grinder. The grind size is critical to the extraction rate and flavor profile of the espresso. A grind that is too fine can result in an excessively long extraction and a bitter taste, while a grind that is too coarse will result in an extraction that is too fast and a thin, sour taste.

How is the optimum grind determined?

The optimal grind varies depending on the coffee bean, machine and personal preferences. Baristas should choose the grind based on the taste of the espresso and the Extraction timeDuring the extraction time, also known as the brewing time, the water dissolves the aromas and flavors from the coffee beans. If the brewing time is too long, the... read more adjust. A good rule of thumb is that espresso should be extracted in about 25-30 seconds. If the extraction is too fast or too slow, the grind should be adjusted accordingly. It is also important to regularly check and adjust the grind, as factors such as humidity and the freshness of the beans can affect extraction.