1. Rough grinding

Coarse particles, as big as coarse sugar. Suitable for coffee percolating pot and boiling coffee pot.

2. Intermediate crushing

Gravel-shaped, with particles as big as sugar mixed with coarse sugar. Suitable for siphon coffee machine, filter coffee machine and paper drip coffee machine.

Step 3: Fine grinding.

Fine particles, the size of sugar. Suitable for steam pressurized coffee machine and drip coffee machine.

4. Very fine grinding

The size is between salt and flour. Suitable for Italian coffee and Turkish coffee, because the home grinder can't grind this texture, so it is generally necessary to buy ready-made grinding powder. Therefore, if you want to make and enjoy espresso at home, you'd better make it in large quantities and drink fresh and mellow espresso.

Extraction skills of espresso coffee

The so-called Italian concentration is made by extracting pressurized hot water from coffee powder. The characteristics of hot water will flow to places with low resistance, so it will pass through places with low density or low coffee level. If the distribution density of coffee powder is uneven, it is impossible to draw beautiful patterns.

Production process:

Pour coffee powder into the coffee handle.

Gently press the surface of coffee powder with your fingers and slide from north (12) to south (6 o'clock). Clean the coffee powder above the filter. Then wipe off the excess coffee powder with the top cover of the bean storage tank.

The wrist angle is 90 degrees, the elbow is perpendicular to the brewing handle, and the coffee powder is pressed by the powder press.

Pay attention to the front, back, left and right levels.

Then tap the two ends of the coffee handle with the other end of the presser. Add coffee powder again and flatten it.

Turn the baler gently. Brush off the powder at both ends of the coffee handle with a brush.

Let the hot water flow out of the water outlet about 1? 2 seconds (heating and cleaning the water outlet at the same time), and check the flow.

At 45? Angle, buckle the coffee handle into the groove of the coffee machine, and then turn right to fix it.

Press the set button to extract espresso into the cup.

There will be a lot of oil at the beginning. In the process of extraction, the color of coffee liquid will gradually change from dark brown to red brown and finally to bright brown. After extracting enough, close the switch to complete the extraction.