How to control the filling strength of Italian coffee powder press and how to do it

Coffee powder

Pressing powder

There are all kinds of theories about the strength of powder pressing, 5 pounds, 10 pounds, 20 pounds. Few people know what it is, and there's no need to worry about how many pounds of force it takes, just remember to apply the force evenly so that the pressed powder's tight surface is smooth.

If the force is too heavy, the water flow during extraction will be very difficult to pass pressed powder, and it is easy to cause insufficient extraction, while too little force will cause excessive extraction, so the powder pressing strength is not the bigger the better, nor the smaller the better. This needs to be constantly tested and adjusted.

How much force you have to use to feel it, after all, the strength of the powder should be the freest parameter in the gold extraction rule. Then come to the extraction part, put the handle on the head of the coffee machine, press the extraction key and wait. The only thing you need to do is seize the time.

According to the definition of "EspressoCoffee The Chemistry of Quality", it must meet the following conditions:

The weight of coffee powder (one cup) 6.5 ±1.58g

Temperature of water (℃) 90 °±5 °

Water pressure 9 ±2 Atmospheric pressure (bar)

The filtering time is 30 ±5 seconds. When the time is over, check yourself against yourself.

Excessive extraction

Too much coffee powder

Too fine powder

The power of pressing powder is too small.

The temperature is too high.

Insufficient extraction

There is not enough coffee

The coffee powder is too coarse

The powder is pressed too hard.

The coffee machine is not warm enough.

However. Cut, cut, cut. Grind cloth to drink, try to make a cup yourself, you know, for such a profound "technology", just look at it is of no use!