Todd from wholelattelove.com demonstrates basic techniques for dialing in espresso shots on a semi-automatic espresso machine. The various extraction variables are discussed with a focus on adjusting coffee dose and grind size. Todd also covers tamping technique and channeling.
ECM Classika PID Espresso Machine: http://www.wholelattelove.com/products/ecm-classika-pid-espresso-machine
Ceado E6 Timer Grinder: http://www.wholelattelove.com/products/ceado-e6-timer-burr-grinder
Coffee and Espresso Kitchen Tools:
http://www.wholelattelove.com/categories/accessories?subcategory=Kitchen+Tools