another_jim wrote:There's disagreements about the best way to start. Many people will tell you to concentrate on getting a consistent 27 to 30 second, 2 ounce, lots of crema shot, time after time, using just one coffee. I personally think this might be good for someone starting out as a barista in a cafe, but that it's pretty gradgrind for someone who wants to enjoy the coffee. I would advise using lots of coffees, making 10 and 60 seconds shots (this will happen pretty automatically as you adjust the grinder), tasting them all carefully, paying attention ot the colors, textures and flavors, and trying to make sense of the variations you get. Consistency is important; but it's more important to know what the possibilities are, and which one to aim for.