
Techstuff Classic: How Coffee Machines Work
TechStuff
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What Is an Expresso?
An expresso actually refers to a ing, from the italian word for for press. It's made by packing these very fine grounds very tightly and forcing a small amount of water through them. 25 to 30 seconds is the ideal amount of time for one point five ounces of water to make its way through a pull of expresso.
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