It’s also ist like a laboratory experiment, the way we weigh, measure and test every aspect of the coffee making process. It takes exactly 14grams of coffee prepares in a double basket portafilter, the coffee is ground to a precise and repeatable grind, and extracted under a perfect 9 bars of water pressure at the predetermined 91 degrees Celsius.
Only them do we achieve the magic 60mls of deliciously smooth espresso base.
It goes without saying that we are a little obsessive and like to control the outcome of our coffee making experience, for the benefit of the perfect coffee shot.
It is for that reason a preheated cup is important. Without it, we are relying on a cup that is colder than the. Coffee it will be coming into contact with and therefore affecting the temperature of the coffee in the cup. That temperature change will affect the flavour of your coffee.
I store my ceramic coffee cups on top of my espresso machine, but for the times that I forget, I’ll just rinse the cup with some warm or hot water and that will do pretty much the same job.