Determination method of Italian Coffee Oil Color determination

Espresso? The color of coffee oil can be used to tell whether the extraction degree of ESPRESSO is moderate, whether the powder is enough, whether the filling force is in place, whether the water temperature of the coffee machine is correct and whether the beans are novel, and so on. The color of Italian coffee oil is preferably golden yellow with a slight tendency to brown, and the color of oil tends to be milky white, which is generally called underextraction, while the tendency to dark brown is excessive extraction.

Insufficient extraction

The lack of extraction is generally milky white at the moment, which may be due to insufficient powder, light filling force, low water temperature, coarse grinding of coffee powder, insufficient water pressure, or the unnovelty of coffee beans. sometimes it is also related to the light roasting of coffee beans or the variety of coffee beans.

Excessive extraction

Excessive extraction generally shows that the color of the oil is dark brown at the moment, which may be caused by too much powder, too much pressure, too high water temperature, detailed grinding of coffee powder, and sometimes it has something to do with the deep excessive roasting of coffee beans. The grease color of espresso is the most basic common sense that coffee lovers and baristas need to taste and grasp, which can help you taste the quality of coffee in the shortest possible time.