Why does the espresso machine press flat? Why must press powder flatten?
When using the espresso machine, boiled water is about 9 atmospheres (of course, this is not a fixed value, there are 12 ATM or higher), a lot of pressure, when the water through the coffee cake, water is inert, that is, the water will be through the past from the weakest coffee cake, rather than from the thickest. So, if you don't use coffee powder press to flatten and flatten the coffee, the essence of coffee can not be extracted, or some parts are over extracted. This way out of coffee, taste and nutrition are affected.
If the powder is not flattened, will cause you to handle is not tight, alive in the handle of coffee extract will become loose, the most important thing is not even wet water rhyme coffee powder, coffee powder water will flow to a large number of concave resulting in extraction problems affecting the taste of coffee!
Press powder is flat, two is pressingIt's a unified and simultaneous process to ensure that hot water is immersed in coffee powderPressing the hot water filtered coffee can have enough pressure to extract the coffeePress the pressed coffee powder when making the powder bowl to make sure the coffee head and the coffee powder come into contact with each other
