Who made the expresso machine?!
Who made the expresso machine?
Answers:
Espresso is a type of coffee drink that is much richer and thicker in taste. Not only is there a great amount of flavor, but espresso is made differently by forcing hot water and/or steam through finely roasted coffee beans.
In Italy espressos are considered as their average coffee yet in America our average coffee is watered down with hot water and milk. So a lot of the flavor is lost in the brewing process. Italians consider the making of espressos a fine art while Americans just want their coffee and this might explaining the misspelling of the word espresso as "expresso".
The invention of the espresso machine began with the help of Luigi Bezzera in 1901, who created a machine that produced coffee at a faster rate. Then in 1905, Desidero Pavoni bought Bezzera's design and researched how to make a better quality coffee also known as the espresso. He finally realized that the ideal pressure is from 8 to 9 BAR or 800-900 kilopascals and the ideal temperature was 90.6° C or 195° F. His machine was called La Pavoi and most espresso machine today have a similar function.
The machine works by first filling the portafilter with about 6.5 grams of finely grounded coffee beans. Then the beans are tamped or compressed with about 30 pounds of force resulting in a "puck". When the machine is turned on a pressurized stream of hot water and/or steam is forced through the portafilter and espresso is made in the glass
Here you can find a good history of it and drawings of the machines:
http://lrs.ed.uiuc.edu/students/tchen3/e...