https://www.openlearning.com/u..../nicolaisenbrandstru
How a Coffee Espresso Machine Works Understanding how complex devices work can make them easier to use and appreciate. It can also help you determine which one is right for you. Two important factors in espresso machines are pressure and temperature of the water. For the best flavor extraction the water should be between 195 and 204 degrees Fahrenheit. The pressure is important however If it's too much, the coffee will taste bitter. The ideal pressure is nine
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