Espresso is a type of coffee drink that is made with a combination of various elements, namely pressure, heat and the fineness of the coffee beans. It can be a bit of a tricky science to master, and there is a pretty good chance that you would need to use a fair bit of trial and error before you can come upon settings that are optimal. Even the slightest bit of imprecision in any of these factors can change the taste of your espresso, and it can often dramatically reduce its quality which can be annoying if you are a diehard espresso lover.
The truth of the situation is that there is already an established standard for both ideal heat as well as the ideal coffee bean fineness for excellent espresso, but the jury is still out in terms of optimal pressure. Pressure is usually measured in bars, and while some low quality machines don’t give you much control over this suffice it to say that CoffeeShan has plenty of options that let you fiddle around and change the pressure as per your requirements.
The great news for you is that a few researches have managed to come up with the perfect number of bars of pressure for an optimal espresso. It turns out that nine bars is just enough to extract a sizeable quantity of espresso without impacting its flavor. However, the fact of the matter is that it also depends on the kind of bean you are using. It’s often better to come up with your own ideal settings because you can never predict what kind of coffee each bean will make so a bit of experimentation is useful.