A Short History
The human have been drinking coffee for more than 500 years, but espresso has got only about 60 years. In most time of this 60 years, it is only made and served in Italy and some other countries in south Europe.
For the most part of the world and most coffee professionals of the world, the history about espresso may be started only around 1990. It means that we are all starting to learn and to know espresso at similar place.
The Past Experience
In about the last twenty years, more and more people knew and learnt to make espresso drinks.
There are some understandings about espresso and its brewing skills had been practised for many years. But till now, as you well know that the world coffee retail market, that is the cafes, can hardly make good espresso. It remind us to think that the past experience can be mistake, or totally wrong.
The most famous one could be the so-called "Golden Rules", that is,
(to be continued)