Basic knowledge of espresso coffee
Use the same amount of beans as a single espresso, which is 1 stroke 2 of an espresso. It can be said that it completely crushed the delicious essence of coffee beans. (Ristretto) in Italian, it means concentrated and short.
Materials: 1 cup (15-20ml) Espresso coffee beans 6.5mur10g coffee beans (6.5mur10g), extraction time (20mur30s, water temperature 90 degrees Celsius) are the same as a single espresso, the extraction amount will vary slightly from barista to barista, but roughly half the amount of So'o, that is, 15-20ml My method is to use 8.5ml 9g beans, the extraction time is 27 17ml 28 seconds, the extraction amount is about 17ml, the grinding thickness of beans is even finer than Solo.
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