How to adjust the grinding degree of espresso-espresso and American coffee

How to adjust the grinding degree of espresso-espresso and American coffee

The color of the oil had better be golden yellow and slightly brown, and the color of the oil is milky white, which is generally called insufficient extraction, while the preference for dark brown is excessive extraction.

Insufficient extraction

The lack of extraction is generally reflected in the milky white color of the oil, which may be due to insufficient powder, too light filling force, too low water temperature, too coarse coffee powder, insufficient water pressure or not fresh coffee beans. sometimes it is also related to the light roasting of coffee beans or the variety of coffee beans.

Excessive extraction

Excessive extraction is generally reflected in the dark brown color of the oil, which may be caused by too much powder, too much filling force, too high water temperature, too fine grinding of coffee powder and other reasons, sometimes it has something to do with the excessive roasting of coffee beans. The grease color of espresso is the most basic knowledge that coffee lovers and baristas must understand and master, which can help you understand the quality of coffee in the shortest possible time.

Before using an electronic scale to measure the total weight of coffee, you need to put the coffee cup on the scale and then clear the zero. You also need a stopwatch to measure the extraction time. It would be great if you had a stopwatch on your coffee machine. You can also find a special timer to measure the extraction time.

Press the powder according to your usual habit. In order not to destroy the just set amount of coffee powder, you need to use uniform strength when pressing the powder, so that the surface level of pressed powder, the overall pressure of pressed powder is moderate. No matter what method you use, you need to pay attention to the consistent method of pressing powder each time, so as to avoid the effect of making skills on the quality of coffee.

Use the manual pulverization button and measure the powder weight with an electronic scale. There will be an error of + /-0.2g when using manual pulverization. This is the conclusion we reached during the test, so you need to add or remove a little coffee powder to achieve the most standard weight. Some of our customers use small cups instead of handles when weighing them. You can also do this. After the measurement, you can pour the coffee powder directly into the handle.