@oleg008@THEBARNBERLIN If you have the possibility to install a water filter system you can do this but the amount of water you need for some shots of espresso a day is usually not worth the invest
@oleg008@THEBARNBERLIN Usually I recommend bottled water for home use or as a good alternative third wave water to mix your own. It's the best you can do for you and your machine.
@oleg008@THEBARNBERLIN Good point! That's why we test our roasts also with home equipment and even with bialetti ;) in general I recommend 18g in / 34 to 38g out in 30 to 35sec and a temperature of 93 to 96....