A totally new approach to brewing coffee in a filter .....
At the end of the nineteenth century coffee was made in individual filterssitting on a cup or pot by allowing the water to percolate through the groundcoffee and to steep in filters suspended in the pot Bezzera’sespresso machine in 1902 was designed to make a cup of coffee instantaneouslyfor the customer. He must have been aware that he needed to use finely groundcoffee to get rapid extraction, but also that the water would not pass throughthe coffee if it was too fine, without some steam pressure. The fineness of thegrind and consequent blocking prevented espresso grind being used in all othercoffee filters. In 1947 the development of the Gaggia machine using much higherpressure from the spring lever allowed the use of much finer coffee –modern espresso grind – to make coffee in less than 30 seconds.. Now a totally new approach to steep the coffee first and then filter it,using a 60 micron stainless steel mesh filter or filter paper, allows espressogrind coffee to be used t...