To brew a cup of "good" Espresso coffee, there are a variety of reasons for the following:
Composition, roasting and preservation of coffee beans
Grinding, weight and filling of coffee beans
Initial temperature and temperature retention of cooking
The pressure of cooking
The amount of other additives extracted.
Follow Coffee Search for the latest coffee updates. Reproduced from "Coffee Search"
Article URL: https://www.coffeesearch.net/coffee29193.html