Why does my coffee taste weak or lack crema, and how do I fix it?

Weak or uncreamy coffee is usually caused by a grind that is too coarse. Turn the grinding adjustment dial (A5) one click anticlockwise toward '1' while the grinder is in operation, and note that the effect will only be visible after delivering at least 2 cups. Other possible causes include using unsuitable coffee (use espresso-grade beans) or stale coffee from a pack opened too long ago. (Page 27)