The basic knowledge of Italian coffee machine the history of espresso machine
History of espresso machines
The history of commercial espresso machines in coffee books is unified into the piston pump invented by Gaggia in 1948. In the past 60 years, the large appearance and principle of espresso machines have basically not changed much. It's a bit of a pity, but the original exposed E61 brewing port is no longer popular. I personally like very classical copper machines, but scaling and copper rust are unavoidable problems. Modern medium-and high-grade machines, such as conti and starbucks's special machine La Marzocco, often use aluminum alloy boilers. The conti is a French machine, and it has been used as a special machine by coffee beanery. If you want to buy E61 machines, it seems that some brands such as faema are still for sale, and even manual piston machines can be found, but there is no guarantee of pressure. Speaking of manual motors, it always reminds me that the earliest movie cameras were also hand-shaked. at that time, many photographers shook very fast as soon as they took tense shots, and as a result, everyone on the screen moved madly, and sometimes they would shake very slowly when they encountered calm and beautiful lenses, so rocking film was a technical job at that time. It is the same now, if the pressure is not enough, crema will not come out.
Gaggia is still producing espresso machines today, but all aspects of technology have lagged behind, and the quality has also declined, which really makes people feel that time flies.
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Basic knowledge of Blue Mountain Coffee the unique Blue Mountain Coffee in the World
Blue Mountain Coffee is the best coffee in the world. The Blue Mountains are located in the eastern part of the island of Jamaica, hence its name because it is surrounded by the Caribbean Sea. On clear days, the sun shines directly on the blue sea, and the peaks reflect the bright blue light of the sea. The highest peak of the Blue Mountains is 2256 meters above sea level. It is the highest peak in the Caribbean and a famous tourist attraction.
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Common sense of Italian Coffee beans Source of espresso Coffee beans
Espresso commonly used beans we know that coffee beans are generally divided into Arabica and Robusta, the former is usually more advanced, the latter is promoted because the latter is easy to feed, like weeds with strong vitality. The former is not only usually raised at high elevations, but also vulnerable to insect pests. Robusta is usually the main ingredient of instant coffee.
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