What makes a great espresso? It might be tempting to think the answer is simple. Use an expensive espresso machine, pull the same amount of espresso every time, serve it immediately, and the result should always taste the same. But espresso does not quite work that way. While an espresso machine is an important tool, great espresso depends on much more than the equipment alone. The coffee beans, grind size, dose, brew ratio, extraction, barista technique, and even the tempera