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This time I take the stand, because Stefano Tesi, whose turn it was, is snowed in and emailed to say that the only power in the house was the fading battery of his Blackberry. So here we go:
Different people have different obsessions, and Enrico Maltoni's is espresso machines. Not just espresso pots, though he also has plenty of those, but espresso machines of the kind one finds in Italian bars, and also their precursors. He has hundreds of the things, and also gives talks about them.
The first machines for making large quantities of coffee, he says, were built in the late 1800s - early 1900s, while the first true espresso machine that used steam pressure to force hot water though the coffee grounds was made in 1901 by Ingegner Luigi Bezzera. It was an imposing machine, essentially a tall column of boiling hot water (there was a safety valve too) with cup
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Carefully, because the espresso machines based on Ingegner Bezzera's design could explode -- in 1946 one did, causing enough of a stir that a drawing of the scene made the cover of the Domenica Del Corriere.
One big problem with the Bezzera design is that it produces the same sort of espresso coffee one gets from a home pot, be it a Mocha pot or a Neapolitan pot. The coffee is strong, and black, and bitter, and that's it.
In 1946, however, Achille Gaggia had a brilliant intuition and built a machine with pistons to collect the steaming hot water and force it through the coffee grounds under a pressure of about 8 atmospheres. The resulting coffee is creamy, a revolutionary advancement, and indeed the early piston machines say Caffé Crema Naturale to emphasize this fact.
The piston machines require a fair amount of physical strength to use, and barristi must have greeted the introduction, in the early 1960s, of machines with electric motors to work the pistons with considerable joy. And now, thanks to new technologies, the barrista can tailor each cup of coffee to the client's tastes.
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For more information, and a truly astonishing number of pictures, check Enrico Maltoni's site.
Published Simultaneously by IGP, I Giovani Promettenti.
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Carlo Macchi
Kyle Phillips
Luciano Pignataro
Roberto Giuliani
Stefano Tesi
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